JP4683147B2 - Beverage extractor - Google Patents

Description

  The present invention relates to a beverage extraction apparatus that is incorporated in a cup-type vending machine, a beverage dispenser, and the like and extracts coffee or tea-based beverages using raw materials such as coffee beans and tea leaves, and in particular, an extraction container used for extraction, The present invention relates to a beverage extraction device having a rinse function for cleaning a beverage conveyance path.

  Conventionally, as this type of beverage extraction device, for example, the one disclosed in Patent Document 1 already filed by the present applicant is known. This beverage extraction device is applied to a cup-type vending machine and uses a predetermined raw material and hot water to extract a beverage such as coffee. A cylindrical cylinder having an open upper surface and a lower surface, and a beverage on the upper surface. It has a filter for filtering, and is provided with a filter block provided below the cylinder so as to be able to move up and down, and a scraper for discharging the extracted residue that is a raw material remaining on the filter after the beverage is extracted.

  In this beverage extraction device, first, when a beverage is extracted, the filter block is raised to seal the lower surface of the cylinder. Next, raw materials and hot water are supplied to the cylinder, and the beverage is extracted in the cylinder. The extracted beverage passes through the inside of the filter block while being filtered by the filter of the filter block, and is conveyed to the outside. Next, when the filter block is lowered, the lower surface of the cylinder is opened, and the extraction soot remains on the filter of the filter block. Thereafter, the scraper moves on the filter block to scrape and remove the extracted soot on the filter.

  In addition, this beverage extraction device has a rinsing function that automatically cleans the device itself at times other than when the beverage is sold, specifically immediately after the sale, every predetermined time, and further at a predetermined time such as midnight. Yes. This rinsing function controls the beverage extraction device in accordance with a control program common to the beverage sales operation, and performs the same operation as at the time of sale except that the raw material is not supplied to the cylinder. Cleaning is performed.

JP 2008-168113 A

  In the beverage extraction device described above, the cylinder or the like is washed by the rinse function. Therefore, it is possible to provide a high-quality beverage by extracting the beverage using a clean cylinder. However, when rinsing is performed immediately after the beverage is sold, the next beverage cannot be sold until the beverage is finished, and the purchaser who wants to purchase the beverage is kept waiting. In addition, when rinsing is performed every predetermined time or at a predetermined time, if a plurality of sales (extraction) are performed between the rinsing and the next rinsing, the inner surface of the cylinder Dirt gradually increases and the quality of the beverage is reduced. In particular, if the next extraction is carried out with the extraction jar attached to the inner surface of the cylinder, the extraction tub will be used for the next extraction, and the quality of the beverage will deteriorate. Therefore, there is room for improvement in the beverage cooking apparatus.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a beverage extraction device that can provide a high-quality beverage while ensuring continuous provision of the beverage. And

  In order to achieve the above object, the invention according to claim 1 is a beverage extraction device for extracting a beverage using raw materials and water, wherein the lower surface is opened, and the raw materials and water are supplied. An extraction container for extracting beverages, and a permanent filter that is repeatedly used on the upper surface, a sealing position that seals the lower surface of the extraction container below the extraction container, and lower than the sealing position and the extraction container When the beverage that is extracted in the extraction container and carried out of the extraction container passes through the open position that opens and closes to the open position that opens the lower surface of the bottle, the beverage is removed by the permanent filter. Beverage filtration unit for filtering, beverage filtration unit driving means for driving this beverage filtration unit, and the extraction cake that is the raw material after extraction remaining on the upper side of the permanent filter is discharged And a washing water supply means for supplying washing water for washing the inner surface of the extraction container to the extraction container, a beverage filtration unit driving means, an extraction basket discharge means and a washing water supply means. Control means, and after the beverage is carried out from the extraction container via the beverage filtration unit, the first washing water is supplied to the extraction container by the control of the control unit, and the beverage filtration unit is opened from the seal position. After being moved to, the extracted soot is discharged.

  According to this structure, a raw material and water are supplied to the extraction container by which the lower surface was sealed by the beverage filtration part located in a sealing position, and a drink is extracted in an extraction container. The extracted beverage is carried out while being filtered by the permanent filter of the beverage filtration unit, and after the carry-out, the extraction basket remains on the upper side of the permanent filter. Then, the first cleaning water is supplied to the extraction container by the cleaning water supply means. As a result, the extraction basket adhering to the inner surface of the extraction container is likely to be detached from the extraction container due to the weight of moisture by the washing water. Thereafter, the beverage filtering part is moved from the sealing position to the open position, so that most of the brewing cup is lowered together with the beverage filtering part. Then, the extraction basket remaining on the upper side of the permanent filter is discharged in preparation for the next beverage extraction by the extraction basket discharge means.

  In general, in a cup-type vending machine equipped with a beverage extraction device, a beverage is provided to a purchaser by performing a series of operations of beverage extraction, carry-out, and extraction basket discharge by the beverage extraction device. Therefore, according to the above-described configuration, by supplying washing water to the extraction container before discharging the extraction basket, rinsing of the extraction container can be performed during the sale of the beverage and for each sale. A high-quality beverage can be provided while ensuring continuous provision of the beverage.

  According to a second aspect of the present invention, in the beverage extraction device according to the first aspect, after the beverage filtration unit is moved to the open position under the control of the control means, the second washing water is further supplied to the extraction container. It is characterized by discharging the extracted soot.

  According to this configuration, by moving the beverage filtration unit to the open position, most of the extraction basket is lowered together with the beverage filtration unit. Thus, in a state where the beverage filtration part is separated from the extraction container, a small amount of the extraction basket may adhere and remain on the lower end part of the extraction container. Therefore, after the beverage filtration unit is moved to the open position, the second washing water is further supplied to the extraction container, so that the extraction cake adhering to and remaining on the lower end of the extraction container is washed away with the washing water. Drop it into the lower extractor and discharge it. As described above, the extraction container can be made cleaner.

  The invention according to claim 3 is the beverage extraction apparatus according to claim 1 or 2, further comprising a time measuring unit that measures an elapsed time after the beverage is extracted, and the control unit has a predetermined elapsed time. When the time is reached, the extracted soot discharging operation by the extracted soot discharging means is executed.

  According to this configuration, the elapsed time from the extraction of the beverage is measured by the time measuring means, and when the measured elapsed time reaches a predetermined time, the extraction basket discharging means performs the extraction basket discharging operation. Let After the beverage has been extracted, the extracted soot adhering to and remaining on the inner surface of the extraction container may be dried over time, detached from the extraction container, and dropped onto the permanent filter. If the next beverage extraction is performed in this state, the extraction basket on the permanent filter is used for beverage extraction, which may lead to a decrease in beverage quality. Therefore, as described above, by performing the operation of discharging the extraction cake, the extraction cake dropped on the permanent filter is discharged, thereby preventing the quality of the beverage from being deteriorated due to the next extraction.

  According to a fourth aspect of the present invention, in the beverage extraction device according to any one of the first to third aspects, the extraction basket discharging means has a predetermined standby position and a predetermined interval on the upper side of the beverage filtration unit. A scraper for scraping and discharging the extracted soot while sliding in contact with the permanent filter by moving from the standby position to the extracted soot discharge position. And a scraper driving means for driving.

  According to this configuration, after the beverage is extracted, the scraper is driven by the scraper driving means, so that the scraper moves from the standby position to the extraction basket discharge position while slidingly contacting the permanent filter. Thus, by moving the scraper at the standby position to the extraction soot discharge position, the extraction soot on the permanent filter can be scraped off by the scraper and easily discharged.

  The invention according to claim 5 is the beverage extraction device according to any one of claims 1 to 3, wherein the extraction basket discharging means has a higher degree of filtration than the permanent filter, and filters the beverage and discharges the extraction basket. And a paper feeding means for feeding out the paper filter between the extraction container and the beverage filtration unit.

  According to this structure, the fine powder contained in the raw material can be removed by filtering the beverage using a paper filter having a higher degree of filtration than the permanent filter, and a high-quality beverage with almost no residue can be obtained. Can do. Further, after the beverage is extracted, the paper trout can be easily discharged together with the used portion of the paper filter by sending out a continuous paper filter between the extraction container and the beverage filtration unit by the paper feeding means.

  The invention according to claim 6 is the beverage extraction apparatus according to any one of claims 1 to 5, wherein the extraction container is formed in a cylindrical shape having an upper surface opened and extending in the vertical direction, and is supplied from above. Is arranged so as to hit the upper part of the inner surface of the extraction container, and the inner surface of the extraction container is provided with a convex part extending in the whole in the circumferential direction and projecting in a tapered shape at the center in the vertical direction. It is characterized by being.

  According to this configuration, the extraction container is arranged so that the cleaning water supplied from above hits the upper part of the inner surface, and the convex portion having a predetermined shape is provided at the center in the vertical direction of the inner surface of the extraction container. The convex portion extends in the circumferential direction of the extraction container and protrudes in a tapered shape inward. Therefore, the wash water which hits the upper part of the inner surface of the extraction container and flows down along the inner surface is once received by the convex part and flows downward while spreading in the circumferential direction of the inner surface of the extraction container. Thereby, the inner surface of the extraction container can be effectively cleaned in the lower half of the extraction container that is likely to remain with the extraction soot attached.

  The invention according to claim 7 is the beverage extraction apparatus according to any one of claims 1 to 5, wherein the extraction container is formed in a cylindrical shape having an upper surface opened and extending in the vertical direction, and is supplied from above. And the water is disposed so as to hit the upper part of the inner surface of the extraction container, and the upper part of the inner surface of the extraction container is provided with a convex portion that extends in the circumferential direction and protrudes in a tapered shape toward the inside. It is characterized by that.

  According to this configuration, the extraction container is arranged so that the wash water and water supplied from above hit the upper part of the inner surface, and the convex part having the same shape as the convex part of claim 6 is formed on the inner surface of the extraction container. Since it is provided, when washing water is supplied to the extraction container, the same operation and effect as in claim 6 can be obtained. Moreover, since the convex part of Claim 6 is provided in the center part of the up-down direction of the inner surface of an extraction container, water is supplied to an extraction container for the extraction of a drink, The water level is from the center part of an extraction container. If the beverage is repeatedly extracted in a high state, the stain due to the beverage gradually accumulates on the upper surface of the convex portion. On the other hand, in the present invention, since the convex portion is provided on the upper part of the inner surface of the extraction container, even if the amount of water supplied to the extraction container is relatively large and the water level of the beverage is higher than the central part of the extraction container , It is possible to greatly reduce the accumulation of dirt from the beverage on the convex portion. That is, while increasing the amount of beverage to be extracted, the dirt on the convex portion can be greatly reduced, and the extraction container can be kept clean. Furthermore, the water supplied to the extraction container for extracting the beverage and flowing down along the inner surface of the beverage mixes with the raw material so as to permeate the raw material in the extraction container from its surroundings. Thereby, extraction efficiency can be improved by being able to make water and a raw material into a comparatively uniform mixed state in a short time, As a result, a quality drink can be obtained in a short time.

  The invention according to claim 8 is the beverage extraction device according to claim 7, wherein the extraction container is arranged so that the raw material supplied from above is guided near the inner surface of the extraction container. The inner surface is provided with a water contact portion that protrudes from the upper side at approximately the same height as the convex portion, and is exposed to water from above, and a material contact portion from which the raw material contacts from above. Is configured such that the upper surface is positioned above the upper surface of the convex portion, and the raw material contact portion is configured such that the upper surface is positioned below the upper surface of the convex portion.

  According to this configuration, the extraction container is arranged so that the raw material supplied from above is guided near the inner surface, and the inner surface of the extraction container has the above-described water contact portion and A portion per raw material is provided. In addition, since the upper surface of the water contact portion is positioned above that of the convex portion, the water supplied to the extraction container and hitting the water contact portion from above is once received by the water contact portion, Centered on it, it is guided in the circumferential direction on the upper surface of the convex portion, and flows down along the inner surface of the extraction device.

  On the other hand, the raw material supplied to the extraction container and hitting the raw material hitting portion from above is splashed inward of the extraction container. As a result, the raw material supplied to the extraction container is not in a single state at the bottom in the extraction container, but is relatively expanded. In addition, since the upper surface of the raw material contact portion is positioned below that of the convex portion, even if the raw material remains on the upper surface of the raw material contact portion, the remaining raw material remains in the circumferential direction on the upper surface of the convex portion. It flows down to the bottom of the extraction container together with the water guided to the bottom.

  As described above, when the beverage is extracted, the water and the raw material supplied to the extraction container hit the water hitting part and the raw material hitting part from above, respectively, so that the raw material is spread to the bottom in the extraction container. On the other hand, water permeates from the surroundings, and both can be mixed in a more uniform state. Thereby, extraction efficiency can be improved further and a higher quality drink can be obtained. In addition, since the cleaning water supplied to the extraction container hits the water contact portion from above, the cleaning water can be efficiently guided in the circumferential direction on the upper surface of the convex portion, and the cleaning effect of the extraction container can be improved. Can do.

  The invention according to claim 9 is the beverage extraction device according to claim 8, wherein the upper surfaces of the water contact portion and the raw material contact portion are inclined upward and downward toward the inside of the extraction container, respectively. It is characterized by.

  According to this configuration, since the upper surface of the water contact portion is inclined forward and upward toward the inner side of the extraction container, compared to the case where the upper surface is inclined horizontally or forwardly lower, More hit water can be guided in the circumferential direction on the upper surface of the convex portion. On the other hand, the upper surface of the raw material hitting part is inclined forward and downward toward the inside of the extraction container, so that the raw material hitting the raw material hitting part can be effectively jumped to the inner side of the extraction container. It can be made into the state which expanded in the bottom part.

It is a figure which shows typically the internal structure of the cup-type vending machine provided with the drink extraction apparatus by one Embodiment of this invention being applied to the paper filter type coffee extraction apparatus. It is a figure which shows typically the internal structure of the cup type vending machine provided with the beverage extraction device by one embodiment of the present invention being applied to the permanent filter type coffee extraction device. It is a block diagram which shows control of the various apparatuses in a vending machine. It is a perspective view which shows a paper brewer, (a) shows a state when it sees from the upper right, (b) shows from the upper left. It is a perspective view which shows a mesh brewer, (a) shows a state when it sees from the upper right, (b) shows from the upper left. It is a perspective view which decomposes | disassembles and shows a paper brewer for every unit. It is a perspective view showing a drip unit in the state where a cylinder was removed from a cylinder holder. It is a figure which shows a cylinder, (a) is a top view, (b) is sectional drawing which follows the bb line of (a). It is a figure which shows a cylinder holder, (a) is a top view, (b) is a front view. It is a perspective view which shows the drip unit which abbreviate | omitted the outer side cover of the cylinder holder, (a) shows the state when it sees from the front side, (b) shows the state when it sees from the back side. It is a side view which shows the internal structure of the right side wall of a cylinder holder, (a) shows 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 figure which shows the state which cut | disconnected the cylinder holder shown in FIG. 9 by the XIII-XIII line. It is explanatory drawing for demonstrating removal of the drip unit from a main body drive unit, and shows the state before operation of a removal lever. It is explanatory drawing similar to FIG. 14, and shows the state after operation of a removal lever. (A) is a perspective view which shows the main body drive unit of a paper brewer, (b) is a perspective view which shows the state which removed the unit cover and the paper guide plate from the main body drive unit. (A) is a perspective view which shows the main body drive unit of a mesh brewer, (b) is a perspective view which shows the state which removed the scraper from the main body drive unit. It is a left view which shows the internal structure of a main body drive unit. It is a left view which shows the internal structure of the main body drive unit of a mesh brewer. It is a right view which shows the internal structure of a main body drive unit. It is a perspective view which shows a paper filter delivery apparatus, (a) shows a state when it sees from the upper right, (b) shows from the upper left. It is a perspective view which shows a paper holder unit, (a) shows the state which closed the paper set door, (b) shows the state which opened the paper set door. (A) is a top view of a paper holder unit, (b) is sectional drawing which follows the bb line of (a). (A) is a left view which shows the state which abbreviate | omitted the cover of the left side wall of a paper holder unit, (b) is sectional drawing which follows the bb line of (a). It is a figure for demonstrating a paper piece detection lever, (a) is a top view, (b) is a left view. It is a figure for demonstrating the lock structure of a drum drive mechanism, (a) shows a locked state, (b) shows a lock release state. It is a perspective view which shows a paper drive unit, (a) shows a state when it sees from the upper right, (b) shows from the upper left. It is explanatory drawing for demonstrating mutual connection of a paper holder unit and a paper drive unit, (a) shows the state which separated both units, (b) shows the state which connected both units. It is a flowchart which shows the execution process (main routine) of the selling operation | movement of coffee. It is a flowchart which shows the initial process (subroutine) for extracting soot discharging. It is a flowchart which shows a coffee extraction process (subroutine). It is a flowchart which shows a large capacity extraction process (subroutine). It is a flowchart which shows the extraction soot discharge process (subroutine). It is explanatory drawing for demonstrating operation | movement of the paper brewer at the time of coffee sale in order, (a) is a standby state, (b) is the supply state of the raw material and hot water to a cylinder, (c) is the after-hot water to a cylinder. Indicates the supply status. It is explanatory drawing following FIG. 34, (a) is the state which the cylinder head advanced and is located just above the cylinder, (b) is the state where the cylinder head sealed the upper surface of the cylinder, and (c) is the carry-out of coffee After completion, the state where the seal on the upper surface of the cylinder by the cylinder head is released is shown. FIG. 35 is an explanatory diagram following FIG. 35, in which (a) the cylinder head is retracted and returned to the standby position, and the first rinse water is charged into the opened cylinder, and (b) is the filter block lowered and the cylinder (2) shows the state in which the extraction culm is discharged by sending out the paper filter. It is a figure for demonstrating operation | movement of a paper brewer when the increase of coffee is selected at the time of coffee sale, (a) is the supply state of the additional hot water to a cylinder after completion | finish of carrying out the 1st coffee, (b) is A state in which the cylinder head seals the upper surface of the cylinder after supply of additional hot water is shown. It is explanatory drawing for demonstrating the operation | movement of a mesh brewer at the time of discharging | extracting an extract | curing bowl ahead at the time of coffee sale, (a) is a standby state, (b) is the supply state of the raw material and hot water to a cylinder, (C) shows the supply state of the hot water to the cylinder. It is explanatory drawing following FIG. 38, (a) is the state which the cylinder head advanced and is located just above the cylinder, (b) is the state where the cylinder head sealed the upper surface of the cylinder, (c) is the carry-out of coffee After completion, the state where the seal on the upper surface of the cylinder by the cylinder head is released is shown. 39A is an explanatory diagram following FIG. 39, in which FIG. 39A is a state where the cylinder head is retracted and returned to the standby position, and the first rinse water is charged into the opened cylinder, and FIG. (2) shows a state in which the extraction culm is discharged forward by the scraper. It is explanatory drawing following FIG. 40, (a) shows the state which the filter block returned to the standby position, (b) shows the state where the scraper returned to the standby position. It is explanatory drawing for demonstrating operation | movement of the mesh brewer at the time of discharging | extracting extraction | pouring back | bags backwards at the time of coffee sale, (a) is a standby state, (b) The scraper moved forward and was located in the front standby position The state, (c) shows the supply state of the raw material and hot water to the cylinder. It is explanatory drawing following FIG. 42, (a)-(c) is a figure respectively corresponding to (a)-(c) of FIG. It is explanatory drawing following FIG. 43, (a) and (b) respond | corresponds to (a) and (b) of FIG. 40, respectively, (c) shows the state which discharged | emitted the extraction soot backward with the scraper. It is a table | surface which shows the relationship between the rotation angle of each pinch and cam disc in the operation state of a coffee extraction apparatus. It is a perspective view which shows the modification of a cylinder. It is a top view of the cylinder shown in FIG. FIG. 49 is a longitudinal sectional view of the cylinder shown in FIGS. 47 and 48. It is a flowchart which shows the execution process (main routine) of the rinse of the coffee conveyance path | route by a coffee extraction apparatus. It is a flowchart which shows the rinse process (subroutine) of a coffee conveyance path | route. It is a flowchart which shows post-processing (subroutine).

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. 1 and 2 schematically show the internal structure of a cup type vending machine equipped with a paper filter type and a permanent filter type coffee brewing device, respectively. As shown in both figures, these cup-type vending machines 1 extract coffee using coffee beans and hot water (water) by a coffee extraction device 2 (beverage extraction device, extraction device main body) to the purchaser. A cup of regular coffee is provided.

  The paper filter type coffee extraction device 2 is of a type that filters the extracted coffee with a paper filter P and a mesh filter 72, which will be described later, whereas the permanent filter type coffee extraction device 2 is an extracted coffee. Is a type that is filtered only by the mesh filter 72.

  In the following description, when the paper filter type and the permanent filter type coffee brewing device 2 are distinguished, they will be appropriately referred to as “paper brewer 2A” and “mesh brewer 2B”, respectively. In addition, when distinguishing between the cup type vending machine 1 provided with the paper brewer 2A and the cup type vending machine 1 provided with the mesh brewer 2B, the former is appropriately denoted by reference numeral “1A” and the latter is denoted by reference numeral “1B”. ".

  As shown in FIGS. 1 and 2, a cup-type vending machine 1 includes a coffee extraction device 2 and a raw material supply device 3 (raw material supply means) for supplying a predetermined amount of coffee powder and hot water to the coffee extraction device 2, respectively. ) And a hot water supply device 4 (washing water supply means, water supply means), a mixing bowl 5 for mixing the coffee extracted by the coffee extraction device 2 together with cream and sugar, and a cream for supplying cream and sugar to the mixing bowl 5 And a sugar supply device 6. Moreover, these are controlled by the control apparatus 7 (control means, time measuring means) which has a microcomputer, as shown in FIG.

  The raw material supply device 3 includes a plurality of canisters 11 (only two are shown in FIGS. 1 and 2) that store coffee beans, and a mill 12 that grinds coffee beans. At the time of sale, the coffee beans supplied from the canister 11 to the mill 12 via the chute 11a are ground into a powder by the mill 12, and the coffee powder (hereinafter referred to as “raw material”) is extracted via the chute 12a to the coffee extraction device. 2 is supplied. The hot water supply device 4 includes a hot water tank 13 for storing hot water and a hot water valve 14 composed of an electromagnetic valve. When the hot water valve 14 is opened at the time of sale or when the coffee extraction device 2 is rinsed, A predetermined amount of hot water is supplied from the tank 13 to the coffee extraction device 2 via the hot water supply tube 15. The mixing bowl 5 stirs the coffee extracted by the coffee extraction device 2 together with a predetermined amount of cream and sugar supplied from the cream / sugar supply device 6 via the chute 6a. Thereafter, the coffee in the mixing bowl 5 is supplied to the cup C set in the product outlet 10 through the beverage tube 16 connected to the mixing bowl 5.

  Next, the coffee extraction device 2 will be described in detail. 4 shows a paper brewer 2A, and FIG. 5 shows a mesh brewer 2B. As shown in both figures, the paper brewer 2A and the mesh brewer 2B have a common brewer body 20 for substantially extracting coffee, and the former 2A is a paper filter delivery device 201 described later on the brewer body 20. On the other hand, the latter 2B is composed only of the brewer body 20.

  FIG. 6 shows the paper brewer 2A disassembled for each unit to be described later. In the following description, first, the brewer body 20 common to both brewers 2A and 2B will be described, including the differences between the two brewers 2A and 2B, and then the paper filter sending device 201 in the paper brewer 2A will be described. To do.

  The brewer main body 20 includes a drip unit 21 for extracting coffee and a main body drive unit 22 that drives the drip unit 21. The main body drive unit 22 is fixed in the vending machine 1 with screws or the like, and the drip unit 21 is detachably attached to the main body drive unit 22.

  The drip unit 21 is constituted by a cylinder 23 (extraction container) for supplying raw materials and hot water and for extracting coffee therein, and a cylinder holder 24 for detachably storing the cylinder 23.

  FIG. 7 shows a state where the cylinder 23 is detached from the cylinder holder 24. The cylinder 23 is made of plastic, and as shown in FIG. 8 and FIG. 8, has a cylindrical shape extending in the vertical direction and having an upper surface and a lower surface open and having a predetermined size (for example, height: 102 mm, volume: 328 ml). Is formed. In addition, a handle 25 and a guide portion 26 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 guide part 26 is provided with two upper and lower guide parts 26, 26 that are provided vertically apart from each other at a predetermined interval and are formed vertically symmetrical.

  In addition, a hot water guide wall 27 for guiding the hot water supplied to the cylinder 23 along the circumferential direction of the inner surface is provided on the inner surface of the cylinder 23. As shown in FIG. 8, the hot water guide wall 27 is provided along the inner surface of the cylinder 23 between the vicinity of the upper end of the cylinder 23 and the central portion in the vertical direction, and slightly protrudes inward. It is formed in a U-shape that opens to the opposite side. Further, the inner surface of the cylinder 23 is provided with a hot water diffusion convex portion 28 (convex portion) for diffusing the hot water flowing downward along the inner surface in the circumferential direction in the lower half of the cylinder 23. The hot water diffusing convex portion 28 projects inward in a tapered manner at a central portion in the vertical direction of the cylinder 23 and extends over the entire circumferential direction of the cylinder 23.

  As shown in FIG. 9, the cylinder holder 24 is formed in a box shape having a cylinder accommodating portion 24 a on the inner side, and is provided at the lower portion on the inner side so as to be movable up and down, and is transported to the outside while filtering the coffee in the cylinder 23. Filter block 32 (beverage filtration part) for carrying out, cylinder catcher 34 which holds cylinder 23 accommodated in cylinder accommodation part 24a from the right and left, and is supported rotatably at the upper end part, and cylinder holder 24 The front cover 35 etc. which open and close the front of are provided.

  Further, the cylinder holder 24 is provided so that its outer shell covers the upper half portion between the left and right side walls 41, 41 facing each other with a predetermined interval and the rear end portions of both side walls 41, 41. A back wall 42 and a bottom wall 43 provided so as to extend between the lower end portions of both side walls 41, 41 are formed, and the front surface, the upper surface, and the lower back half are open. Although not shown, the bottom wall 43 is formed in a lattice shape by a plurality of rod-shaped members. In addition, a front upper cover 36 that connects the side walls 41 and 41 is provided near the front end at the upper part of the left and right side walls 41 and 41, and the upper surface of the cylinder holder 24 is disposed behind the front upper cover 36. A holder cover 37 is attached so as to be detachable.

  Further, guide rollers 38 and 39 for guiding the paper filter P are detachably attached to the front end portion and the rear end portion of the left and right side walls 41, 41, respectively, at predetermined positions below. These guide rollers 38, 39 extend in the left-right direction across the left and right side walls 41, 41 and are rotatably supported by the side walls 41, 41. Both guide rollers 38 and 39 are attached to the cylinder holder 24 of the paper brewer 2A, while being removed from the mesh brewer 2B (see FIG. 5).

  Each of the left and right side walls 41, 41 of the cylinder holder 24 has a side surface shape so as to cover the case-shaped side wall main body 44 whose outer side surface is open and its open side surface, while the side surface shape is substantially rectangular. An outer cover 45 screwed to the main body 44 is provided. As shown in FIG. 10, a cylinder opening / closing mechanism 51 that opens and closes the lower surface and the upper surface of the cylinder 23 by driving the filter block 32 and a cylinder head 101 described later is provided in each side wall 41. . Since the left and right cylinder opening / closing mechanisms 51 and 51 are substantially symmetrical in the left and right side walls 41 and 41, the following description will focus on what is built in the right side wall 41.

  As shown in FIGS. 10 and 11, the cylinder opening / closing mechanism 51 is rotatably supported by a support shaft 44 a projecting in the vicinity of the center of the upper half portion in the side wall body 44, and has first and second shapes having a predetermined shape. A cam disc 55 having cam grooves 53 and 54 and a lower half portion in the side wall main body 44 are slidable in the vertical direction, engage with the first cam groove 53 of the cam disc 55, and attach to the filter block 32. The connected slider 56 and a support shaft 44b protruding at a predetermined position in the upper portion of the side wall main body 44 are rotatably supported, engaged with a second cam groove 54 of the cam disk 55, and a cylinder described later. A cylinder head lock member 57 is provided for locking the head 101 while pressing the head 101 against the upper surface of the cylinder 23.

  The cam disc 55 is formed in a disc shape having a predetermined diameter and thickness, and a gear portion 55a is formed on the entire peripheral surface. Further, a convex portion 55b that protrudes slightly in the radial direction by approximately 1/2 arc is provided at the peripheral portion of the cam disk 55 on the outer cover 45 side. Further, the first and second cam grooves 53 and 54 are provided on the side surface of the cam disk 55 on the side wall main body 44 side.

  As shown in FIG. 12, the first cam groove 53 is provided at the peripheral edge of the side surface of the cam disk 55, and is substantially circular in the arc shape centering on the support shaft 44 a of the cam disk 55 and counterclockwise. The outer cam portion 61 extending in this manner, the driving cam portion 62 connected to the outer cam portion 61 and extending in an arc shape toward the support shaft 44a, and the arc shape centering on the support shaft 44a connected to the drive cam portion 62 And an inner cam portion 63 extending so as to make one round in the vicinity of the support shaft 44a. In addition, a predetermined angle portion (hereinafter referred to as “proximity portion 61 a”) in the vicinity of the drive cam portion 62 in the outer cam portion 61 is formed closer to the support shaft 44 a than the other outer cam portions 61.

  On the other hand, the second cam groove 54 is provided on the inner side of the outer cam portion 61 of the first cam groove 53, has an arc shape centering on the support shaft 44a, and counterclockwise from the vicinity of the distal end portion of the outer cam portion 61. An outer cam portion 64 that extends in a substantially ¾ arc shape, a drive cam portion 65 that extends to the outer cam portion 64 and extends toward the support shaft 44a, and that continues to the drive cam portion 65, with the support shaft 44a as the center. It is comprised with the inner side cam part 66 extended in circular arc shape.

  As shown in FIG. 11B, the slider 56 extends in the vertical direction, and the lower part widens downward, and is formed in a substantially convex shape. An engagement convex portion 56 a that protrudes toward the cam disk 55 is provided at the upper end portion of the slider 56, and the engagement convex portion 56 a is slidable in the first cam groove 53 of the cam disk 55. Is engaged. Two connecting shafts 71, 71 that connect the slider 56 and the filter block 32 are fixed to the lower end of the slider 56. Both the connecting shafts 71, 71 extend in parallel to each other in the left-right direction (the front-back direction in the drawing in FIG. 11) with a space in the front-back direction (the left-right direction in FIG. 11). Each connecting shaft 71 passes through a long hole 44 c extending in the vertical direction of the side wall main body 44, and one end is fixed to the slider 56, while the other end is fixed to the slider 56 of the left cylinder opening / closing mechanism 51. Yes. Therefore, the filter block 32 is supported by the left and right sliders 56 and 56 via both connecting shafts 71 and 71. In addition, a long hole 56b extending in the vertical direction is formed in the center of the slider 56, and a support shaft 44d protruding at a predetermined position in the lower portion of the side wall body 44 is slidable in the long hole 56b. Has penetrated.

  The slider 56 configured as described above slides in the vertical direction while being guided between the pair of guide rails 44e and 44e extending in the vertical direction in the side wall main body 44 as the cam disk 55 rotates. Along with this, the filter block 32 moves up and down to open and close the lower surface of the cylinder 23. Specifically, the cam disk 55 shown in FIG. 10A and FIG. 11 rotates in the clockwise direction in both drawings, and the engagement convex portion 56 a of the slider 56 is moved to the outer cam portion 61 of the first cam groove 53. When the drive cam 62 is slid from the inner cam 63 toward the inner cam 63, the slider 56 is raised.

  Then, when the engaging convex portion 56a of the slider 56 reaches the inner cam portion 63, the filter block 32 is in close contact with the lower surface of the cylinder 23 via the paper filter P in the drip unit 21 of the paper brewer 2A. This is sealed (see FIG. 34 (b)). On the other hand, in the drip unit 21 of the mesh brewer 2B, the filter block 32 is sealed in a state of being in direct contact with the lower surface of the cylinder 23 (see FIGS. 38 (b) and 42 (c)). Then, from these states, the cam disk 55 rotates counterclockwise and the slider 56 descends, so that the filter block 32 also descends, thereby opening the lower surface of the cylinder 23 (FIG. 36 ( b), FIG. 40 (b), and FIG. 44 (b)).

  As shown in FIGS. 9, 10 and 13, the filter block 32 includes a circular mesh filter 72 (permanent filter) for filtering coffee, and a wide ring shape provided so as to surround the mesh filter 72. The packing 73 is configured by a block-like support member 74 that supports these on the upper surface and has a passage communicating vertically. The mesh filter 72 is made of a thin metal plate (for example, a stainless steel plate) that is slightly smaller than the inner diameter of the cylinder 23, and has a large number of pores having a predetermined diameter (for example, 30 μm). As described above, the filter block 32 configured in this manner moves up and down as the slider 56 slides in the vertical direction. When the lower surface of the cylinder 23 is closed, the upper surface of the packing 73 contacts the lower peripheral edge of the cylinder 23. Seal this in contact. In this case, in the paper brewer 2 </ b> A, the filter block 32 sandwiches the paper filter with the cylinder 23, while in the mesh brewer 2 </ b> B, the filter block 32 directly contacts the cylinder 23.

  In addition, a filter block tube 32 a is connected between the support member 74 of the filter block 32 and the joint hose 40 (see FIG. 10) provided at the lower rear end of the right side wall 41. The joint hose 40 is connected to a joint hose 140 described later on the main body drive unit 22 side in a state where the drip unit 21 is attached to the main body drive unit 22.

  As shown in FIGS. 10A and 11, a waste liquid tube 50 connected to the joint hose 40 is provided at the lower end portion of the right side wall 41, and a waste liquid tube that opens and closes the waste liquid tube 50. A pinch member 58 is provided. The waste liquid tube 50 is made of an elastic material such as rubber, and has a horizontal portion 50a that extends horizontally forward from the joint hose 40, and extends downward from the horizontal portion 50a. In addition, the waste tube pinch member 58 is formed in a plate shape extending in the vertical direction, and an engaging convex portion 58a that is slidably engaged with the long hole 56b of the slider 56 is provided on the upper end portion, At the lower end portion, a pressing portion 58b is provided below the horizontal portion 50a of the waste liquid tube 50 so as to protrude across the lower portion and have a trapezoidal cross section. Further, on the upper side of the horizontal portion 50a of the waste liquid tube 50, a pressing spring 59 is provided for pinching the waste liquid tube 50 in cooperation with the waste liquid tube pinch member 58 and closing it. The presser spring 59 is constituted by an elongated leaf spring, and is disposed so as to extend along the horizontal portion 50a of the waste liquid tube 50 and to be in contact therewith. Further, both end portions of the presser spring 59 are bent upward and are supported by two support portions 44f and 44f provided on the front and rear (left and right in FIG. 11) of the waste liquid tube pinch member 58 in the side wall main body 44.

  The waste tube pinch member 58 configured as described above moves up and down in conjunction with the up and down movement of the slider 56 accompanying the rotation of the cam disk 55. Specifically, when the slider 56 is lifted from the state shown in FIG. 11, the lower end portion of the long hole 56 b comes into contact with the engaging convex portion 58 a of the waste liquid tube pinch member 58. When the slider 56 is further raised, the waste liquid tube pinch member 58 is raised by being lifted through the engaging convex portion 58a. Thereby, the pressing part 58b of the waste liquid tube pinch member 58 crushes the horizontal part 50a of the waste liquid tube 50 from below, and thereby the waste liquid tube 50 is closed (see FIG. 34 (b) and the like). From this state, when the slider 56 descends, the waste tube pinch member 58 also descends and returns to its original position.

  Further, as shown in FIG. 11B, the cylinder head lock member 57 is formed in a predetermined shape extending in the vertical direction, and its central portion is rotatably supported by the support shaft 44b in the side wall main body 44. Yes. At the lower end portion of the cylinder head lock member 57, an engaging convex portion 57a protruding toward the cam disc 55 is provided, and this engaging convex portion 57a is formed in the second cam groove 54 of the cam disc 55. It is slidably engaged. In addition, a hook-shaped lock portion 57 b extending so as to protrude rearward is provided at the upper end portion of the cylinder head lock member 57.

  The cylinder head locking member 57 configured in this manner rotates with the rotation of the cam disk 55, and presses and locks a cylinder head 101, which will be described later, against the upper surface of the cylinder 23 by the lock portion 57b at the upper end. As a result, the upper surface of the cylinder 23 is sealed. Specifically, the cam disk 55 shown in FIG. 11B and FIG. 12 rotates in the clockwise direction in both figures, and the engagement convex portion 57a of the cylinder head lock member 57 is outside the second cam groove 54. By sliding the drive cam portion 65 from the cam portion 64 toward the inner cam portion 66, the cylinder head lock member 57 rotates around the support shaft 44b in the clockwise direction in FIG. Then, the lock portion 57b of the cylinder head lock member 57 engages with a head guide rod 113 on the upper part of the cylinder head 101, which will be described later, and locks it so as to push it down. Thereby, the cylinder head 101 is sealed in a state of being in close contact with the upper surface of the cylinder 23 (see FIG. 35B and the like).

  The cylinder opening / closing mechanism 51 configured as described above is built in the left and right side walls 41, 41 as described above, and the gear portions 55a, 55a of the cam disks 55 of both the cylinder opening / closing mechanisms 51, 51 are provided. , Meshed with gears 76, 76 that are rotatably provided at predetermined positions in the corresponding side wall main body 44. As shown in FIG. 10, both gears 76 are fixed to both ends of a power transmission shaft 75 extending horizontally in the left-right direction, and the vertical direction of the rear end in the side wall body 44 to which each gear 76 corresponds. It is arranged at the center of the. As shown in FIG. 4B, the gear 76 (hereinafter referred to as “driven joint gear 76A”) provided on the left side wall main body 44 is slightly exposed to the rear, and the drip unit 21 is attached to the drive unit 22. In this state, it engages with a drive joint gear 124 described later on the drive unit 22 side. Therefore, when the driven joint gear 76a rotates, the left cam disk 55 meshing with it rotates, and the right cam disk 55 rotates in synchronization with the left side via the power transmission shaft 75 and the right gear 76. To do.

  The left and right side walls 41, 41 are provided with detaching levers 84, 84 that are operated when the drip unit 21 is detached from the main body drive unit 22. As shown in FIG. 11, the detaching lever 84 extends in the front-rear direction, and is rotatably supported by the support shaft 44d at the approximate center in the length direction. The operation portion 84a at the front end portion (left end portion in FIG. 11) of the detachment lever 84 faces the outside of the side wall 41 and is located inside the concave portion 41a provided at the front portion of the side wall 41 and opened forward. Further, the rear end portion of the removal lever 84 extends downward by a predetermined length, and a removal projection 84b projecting sideways is provided at the lower end portion thereof. As shown in FIG. 6 and the like, the removal projection 84b protrudes to the outside through a long hole 45a formed at a predetermined position of the outer cover 45 of the side wall 41.

  Here, with reference to FIG. 6, FIG. 14, and FIG. 15, the attachment / detachment structure of the drip unit 21 with respect to the main body drive unit 22 will be described. As shown in FIGS. 6 and 14, the left and right side surfaces (outer cover 45) of the drip unit 21 are provided with two upper and lower engaging projections 45b and 45b at predetermined positions on the rear end. Each engagement convex part 45b is formed in the U shape which protrudes a little outward and the side shape opens downward. In addition, the left and right side walls 41, 41 of the drip unit 21 have a total of four support holes 41b (see FIG. 10 (b)) that are opened rearward at the upper and lower end portions of the back surface.

  On the other hand, at the left and right ends of the front portion of the main body drive unit 22, two upper and lower hook-shaped lock portions 85 projecting forward so as to correspond to the upper and lower engaging convex portions 45b and 45b of the drip unit 21, respectively. 85 is provided. As shown in FIG. 14 (b), these lock portions 85, 85 are respectively attached to upper and lower front end portions of a U-shaped connecting member 86 extending in the vertical direction and having a side surface opening forward. . Further, the left and right connecting members 86, 86 are connected by a leaf spring 87 at the upper end portion and urged downward. Furthermore, a total of four support protrusions 88 (see FIG. 6) projecting forward are provided at positions corresponding to the four support holes 41b of the drip unit 21 at the left and right ends of the main body drive unit 22, respectively.

  In the state where the drip unit 21 is attached to the front side of the main body drive unit 22 as shown in FIG. 14B due to the detachable structure of the drip unit 21 side and the main body drive unit 22 side configured as described above, the latter 22 Each support protrusion 88 is inserted into each support hole 41 b of the former 21, and each lock portion 85 of the latter 22 engages with each engagement convex portion 45 b of the former 21. Thereby, the drip unit 21 is firmly attached to the front side of the main body drive unit 22. On the other hand, when removing the drip unit 21 from the main body drive unit 22, as shown in FIG. 15B, the front cover 35 of the drip unit 21 is slightly opened, and the operation portions 84a of the left and right removal levers 84 are simultaneously pushed down. . As a result, the removal projection 84b of each removal lever 84 pushes up the lower lock portion 85 on the main body drive unit 22 side against the urging force of the leaf spring 87. As a result, the upper and lower lock portions 85, 85 are pushed up. Is disengaged from the upper and lower engaging projections 45b, 45b of the drip unit 21. In this state, the drip unit 21 is removed from the main body drive unit 22 by pulling the drip unit 21 forward.

  Further, as shown in FIG. 10B, a cam lock mechanism is provided in the left side wall 41 of the drip unit 21 to make the cam disk 55 non-rotatable when the drip unit 21 is removed from the main body drive unit 22. 89 is provided. The cam lock mechanism 89 is formed in a predetermined shape, and includes a lock member 89a that is slidable in the vertical direction below the driven joint gear 76A, and a spring 89b that urges the lock member 89a upward. When the drip unit 21 is removed from the main body drive unit 22, the lock member 89a engages the driven joint gear 76A from below, thereby making the gear 76A non-rotatable. As a result, the cam disk 55 meshing with the driven joint gear 76A also cannot be rotated. On the other hand, when the drip unit 21 is attached to the main body drive unit 22, the unlocking protrusion 90 (see FIG. 6) protruding from the front side of the main body drive unit 22 engages with the lock member 89a. By pushing down, the lock of the driven joint gear 76A by the lock member 89a is released. As a result, the driven joint gear 76A can rotate, and the cam disk 55 can also rotate.

  As described above, in the state where the drip unit 21 is detached from the main body drive unit 22, the cam disk 55 is locked so as not to rotate for the following reason. That is, the control of the rotation angle of the cam disk 55 is performed using a mode switch 125 provided in the main body drive unit 22 and having a switch gear 125a that rotates in synchronization with the cam disk 55, as will be described later. . Therefore, it is necessary to maintain the consistency of the rotation angle between the switch gear 125a and the cam disk 55.

  Next, the cylinder catcher 34 that holds the cylinder 23 accommodated in the cylinder holder 24 will be described. As shown in FIG. 9, the cylinder catcher 34 includes a U-shaped support member 91 having a planar shape opened forward, and left and right gripping members 92 and 92 fixed to the left and right front ends of the support member 91, respectively. It is configured. The support member 91 is made of a leaf spring, and has a base portion 91a extending a predetermined length in the left-right direction and two left and right arm portions 91b, 91b extending at a right angle at the left and right ends of the base portion 91a and extending a predetermined length forward. It consists of The base 91a is screwed to the inner side surface of the back wall 42. And the said holding members 92 and 92 are being fixed to the front-end part of both arm parts 91b and 91b. Both the gripping members 92 and 92 are opposed to each other, and their facing surfaces are formed in a convex shape.

  With the cylinder catcher 34 configured in this manner, the cylinder 23 accommodated in the cylinder accommodating portion 24a of the cylinder holder 24 is firmly clamped from the left and right by the left and right gripping members 92, 92 by the spring force of the support member 91. .

  As shown in FIGS. 4 to 6, the holder cover 37 covering the upper surface of the cylinder holder 24 is formed in a substantially rectangular planar shape, and a raw material input port 37 a for supplying the raw material to the cylinder 23 and the cylinder 23. There are provided a hot water supply port 37b for supplying hot water and a steam discharge port 37c for discharging the steam generated during cooking of the coffee. The chute 12a (see FIGS. 1 and 2) of the mill 12 is connected to the raw material inlet 37a, the hot water supply tube 15 (see FIGS. 1 and 2) is connected to the hot water supply port 37b, and the steam outlet 37c. A hose (not shown) for steam removal is connected to the.

  Next, the main body drive unit 22 will be described with reference to FIGS. The main body drive unit 22 drives the cam disk 55 of the drip unit 21 and the cylinder head 101 that opens and closes the upper surface of the cylinder 23, supplies air to the cylinder 23, and further, in the mesh brewer 2B, the extractor The scraper 102 (extraction waste discharging means) for discharging the waste is driven.

  16 and 17 show the main body drive unit 22 of the paper brewer 2A and the mesh brewer 2B, respectively. As shown in both drawings, the main body drive unit 22 includes a plastic frame 103 constituting the front wall thereof, and the cylinder head 101 protruding forward from the upper portion of the frame 103 and movably provided in the front-rear direction. A cam driving mechanism 104 (a beverage filtering unit driving means) for driving the cam disk 55, a cylinder head / scraper driving mechanism 105 (a scraper driving means, a seal member driving mechanism) for driving the cylinder head 101 and the scraper 102, A pinch drive mechanism 106 that drives a plurality of pinches 8 that are configured, an air pump 107 that supplies air to the cylinder 23, and the like are provided. The cam drive mechanism 104, the cylinder head / scraper drive mechanism 105, the pinch drive mechanism 106, and the air pump 107 are attached to the back side of the frame 103, and are formed by a box-shaped unit cover 108 whose front and bottom surfaces are open. Covered.

  The cylinder head 101 (seal member) is provided so as to be movable in the front-rear direction while penetrating through a circular head main body 111 having a planar shape larger than the upper surface of the cylinder 23 and an upper opening 103 a provided in the upper part of the frame 103. And a slider 112 that supports the head main body 111 so as to be slightly swingable up and down at the front end. The head main body 111 is connected to a first air transfer tube 9A to be described later, and an air for sending downward the air transferred through the first air transfer tube 9A to a predetermined position on the bottom surface of the head main body 111. A supply port (not shown) is provided. A head guide rod 113 that is longer than the outer shape of the head body 111 and extends in the left-right direction is provided at the upper end of the head body 111. The head guide rod 113 engages with the upper ends of the left and right side walls 41, 41 of the cylinder holder 24 slidably in the front-rear direction when the drip unit 21 is attached to the main body drive unit 22.

  Further, a raw material / hot water guide member 114 for guiding the raw material from the raw material inlet 37 a of the holder cover 37 and the hot water from the hot water supply port 37 b to the cylinder 23 is attached to the upper half of the head body 111. . The raw material / hot water guide member 114 is integrally formed of an auxiliary raw material chute 115 provided in front of the head main body 111 and a hot water guide receiving portion 116 provided on the left side of the auxiliary raw material chute 115. The auxiliary material chute 115 is formed in a cylindrical shape extending in the vertical direction, and is located between the material charging port 37a of the holder cover 37 and the cylinder 23 when the cylinder head 101 is positioned at the standby position, and the material charging port The raw material charged from 37a is further guided to the cylinder 23.

  On the other hand, the hot water guide receiving portion 116 is formed in a case shape whose upper surface is opened, and when the cylinder head 101 is located at the standby position, the hot water supplied from the hot water supply port 37b of the holder cover 37 is further transferred to the cylinder. 23 and receiving the hot water coming out from the hot water supply port 37b, the cylinder head 101 is prevented from getting wet by the hot water. In addition, an auxiliary hot water supply nozzle 116 a that penetrates in the vertical direction and slightly protrudes downward is provided at the front end of the bottom wall of the hot water guide receiving portion 116. The auxiliary hot water supply nozzle 116a is disposed at a position facing the hot water guide wall 27 in the cylinder 23 from directly above when the cylinder head 101 is located at the standby position. Therefore, the hot water flowing into the hot water guide receiving portion 116 from the hot water supply port 37b and discharged from the auxiliary hot water supply nozzle 116a hits the hot water guide wall 27 in the cylinder 23 from above, and the hot water guide wall 27 causes the inner surface of the cylinder 23 to be in contact. It flows down into the cylinder 23 while being guided in the circumferential direction. Further, the hot water flowing down along the inner surface of the cylinder 23 is once received by the hot water diffusion convex portion 28 in the cylinder 23 and further flows downward while spreading in the circumferential direction of the inner surface of the cylinder 23. Hot water is supplied to the cylinder 23 as described above.

  As shown in FIG. 16 (a), in the main body drive unit 22 of the paper brewer 2A, a paper guide plate 109 extending in the vertical direction is provided with a central opening 103b provided in the central part of the frame 103 covered from the front. It is attached. The paper guide plate 109 has a curved portion 109a that covers the lower half of the frame 103 and has a side surface convexly curved backward, and an inclined portion 109b that extends obliquely downward and rearward from the curved portion 109a by a predetermined length. ing.

  When the paper filter P is set between the cylinder 23 of the drip unit 21 and the filter block 32, the paper filter P is manually inserted from the lower side of the paper brewer 2A so that the front end of the paper filter P is Guided upward along the inclined portion 109b of the paper guide plate 109, and further guided forward along the curved portion 109a. As a result, the paper filter P reaches the front of the drip unit 21 from the rear side of the drip unit 21 through the cylinder 23 and the filter block 32. In this way, the paper filter P can be easily set using the paper guide plate 109.

  In addition, as shown in FIG. 17A, in the main body drive unit 22 of the mesh brewer 2B, the scraper 102 is set in the central opening 103b of the frame 103. As shown in FIG. 4B, the scraper 102 is attached to a support 102a formed in a rectangular frame shape whose planar shape is slightly larger than that of the filter block 32, and to be suspended from the front end of the support 102a. And a rubber scraper body 102b whose front shape is a horizontally long rectangular shape. An engagement groove 102c that extends in the left-right direction and opens upward is provided at the rear end of the support 102a, and a notch 102d that opens rearward is formed at a predetermined position of the engagement groove 102. .

  The scraper 102 configured in this manner is slidable in the front-rear direction while being guided by the left and right edges of the central opening 103 of the frame 103. When the scraper 102 is driven by the cylinder head / scraper driving mechanism 105, the scraper body 102b at the front end moves in the front-rear direction on the filter block 32. Thereby, the extracted soot that is a raw material remaining on the mesh filter 72 after the coffee extraction is scraped off by the scraper body 102b and discharged to the front or rear of the drip unit 21.

  As shown in FIG. 18, the cam drive mechanism 104 includes a first motor 121 formed of a DC motor, an output gear 123 connected to the first motor 121 via a gear box 122 (see FIG. 20), and an output thereof. A drive joint gear 124 that meshes with the gear 123 and meshes with the driven joint gear 76 </ b> A on the drip unit 21 side when the drip unit 21 is attached to the main body drive unit 22.

  A mode switch 125 for controlling the rotation angle of the cam disk 55 is provided in the vicinity of the output gear 123. The mode switch 125 has a switch gear 125 a that meshes with the output gear 123 via the intermediate gear 126 and rotates at an equal angle in synchronization with the cam disk 55. The mode switch 125 has a plurality of modes in which the switch gear 125a is turned on at a plurality of predetermined rotation angles, and the control device 7 controls the rotation angle of the cam disk 55 according to these modes. Identify.

  The cylinder head / scraper drive mechanism 105 is a gear having a second motor 131 composed of a DC motor and an output shaft (not shown) that is connected to the second motor 131 and extends in the vertical direction and projects at both ends. The box 132 includes a cylinder head drive unit (not shown) and a scraper drive unit 133 provided at the upper and lower ends of the output shaft. The cylinder head drive unit is engaged with the rear end portion of the slider 112 of the cylinder head 101, and rotates in accordance with the rotation of the output shaft, thereby moving the cylinder head 101 to the standby position (shown by a solid line in FIG. 18). Position) and a closed position for closing the cylinder 23 (a position indicated by a two-dot chain line in FIG. 18).

  On the other hand, the scraper driving unit 133 includes an arm 133a that extends horizontally for a predetermined length, and an engaging convex portion 133b that protrudes downward from the tip portion thereof. In the main body drive unit 22 of the mesh brewer 2B, when the scraper 102 is set from the front of the frame 103 to the central opening 103b, the engagement convex portion 133b of the scraper drive portion 133 is notched at the rear end portion of the scraper 102. It engages with the engaging groove 102c via 102d. As the output shaft of the cylinder head / scraper driving mechanism 105 rotates, the scraper driving unit 133 rotates, so that the engaging projection 133b slides in the engaging groove 102c of the scraper 102. Accordingly, the scraper 102 is between a standby position (a position indicated by a solid line in FIG. 19) and a position where the scraper main body 102b is in front of the front end of the filter block 32 (a position indicated by a two-dot chain line in FIG. 19). Move back and forth.

  The cylinder head drive unit and the scraper drive unit 133 are both connected to the output shaft via a one-way clutch, and when the output shaft rotates in a predetermined direction, only the cylinder head drive unit rotates and outputs When the shaft rotates in the opposite direction, only the scraper driving unit 133 rotates.

  The pinch drive mechanism 106 drives the pinch 8 for opening and closing a plurality of predetermined portions of the transport tube 9 for transporting coffee and air during coffee extraction. Here, with reference to FIGS. 1 and 2, the arrangement relationship of the transport tube 9 and the pinch 8 will be briefly described. As shown in both figures, the transfer tube 9 is connected between the first air transfer tube 9A connected between the air pump 107 and the cylinder head 101, and the joint hose 140 on the air pump 107 and the main body drive unit 22 side. The second air transport tube 9B and the beverage transport tube 9C connected to the joint hose 140 are configured. These transfer tubes 9A to 9C are all made of an elastic material such as rubber. The joint hose 140 is provided at the lower right end on the front side of the main body drive unit 22, and is connected to the joint hose 40 on the drip unit 21 side in a state where the drip unit 21 is attached to the main body drive unit 22.

  The pinch 8 is composed of three pinches attached in the middle of the transfer tubes 9A to 9C, specifically, a first air pinch 8A, a second air pinch 8B, and a beverage pinch 8C. These pinches 8A to 8C are the same. As shown in FIG. 20, each pinch 8 is rotatably attached to a tube holder 141 that holds a portion of the transport tube 9 to which the pinch 8 is attached, and the tube holder 141. A pinch main body 142 for crushing and closing, and a cam 143 having a predetermined shape which is rotatably provided on the side opposite to the conveying tube 9 of the pinch main body 142 and presses the pinch main body 142 toward the conveying tube 9. It consists of

  Pinch 8A-8C comprised in this way is arranged so that the 1st and 2nd air pinch 8A and 8B may be arranged adjacent to right and left, and drink pinch 8C may counter this to the front of the 1st air pinch 8A. Has been. In these pinches 8A to 8C, the cam 143 is shared.

  The pinch drive mechanism 106 meshes with the first motor 121 and the gear box 122 common to the cam drive mechanism 104 described above, the output gear 144 fixed to the right end portion of the output shaft thereof, and the cam 143 of the pinch 8. A drive gear 146 fixed to the rotary shaft 145 is provided.

  As described above, the cam drive mechanism 104 and the pinch drive mechanism 106 use the first motor 121 as a common drive source, and the cam disk 55, the filter block 32, the cylinder head lock member 57, and the waste liquid tube pinch member 58 by the former 104. And the three pinches 8A to 8C by the latter 106 are driven so as to be linked to each other. Thereby, when coffee is extracted, the upper and lower surfaces of the cylinder 23 are opened and closed, the waste tube 50 is opened and closed by the waste tube pinch member 58, and the transport tubes 9A to 9C are opened and closed by the pinches 8A to 8C. It can be carried out.

  Next, the paper filter delivery device 201 of the paper brewer 2A will be described with reference to FIGS. The paper filter delivery device 201 (paper delivery means) includes a paper holder unit 202 that holds the paper filter P, and a paper drive unit 203 that drives the paper holder unit 202. The paper holder unit 202 is detachably attached to the bottom surface of the drip unit 21 while sliding in the front-rear direction, while the paper drive unit 203 is detachable while sliding in the front-rear direction at the left end of the bottom surface of the main body drive unit 22. Is attached.

  As shown in FIGS. 22, 23 and 24, the paper holder unit 202 holds the continuous paper filter P in a strip shape wider than the outer diameter of the cylinder 23 of the drip unit 21 and the paper filter P so that the paper filter P can be sent out. Holder body 204, two left and right paper feed drums 205, 205 provided on the upper front side of holder body 204, and a paper set attached to the front end of holder body 204 so as to cover both paper feed drums 205, 205 A door 206, a paper break detection lever 207 provided on the back side of the holder main body 204, a drum drive mechanism 208 that is built in the left side wall of the holder main body 204 and rotationally drives the paper feed drums 205, 205, and the like. ing.

  The paper filter P is produced by finely weaving plant fibers and the like, similar to a general one for coffee extraction, and has a higher degree of filtration than the mesh filter 72 described above. Further, the paper filter P has a roll part Pr wound in a roll shape around a cylindrical core part Ps having a predetermined inner diameter.

  The holder main body 204 is formed in a box shape whose bottom surface and lower half of the front surface are open, and includes a plastic frame 211 that accommodates the roll portion Pr of the paper filter P inside. As shown in FIG. 23B, the frame 211 is formed in an upwardly convex arc shape from the back side to the front side, as shown in FIG. 23 (b), and is attached to the ceiling portion and extends to the lower end on the front side. A film cover 212 covers the lower half of the front surface. The frame 211 has left and right side walls 213 and 213, and a cover 215 is attached to the outside of the left side wall 213. Each of the side walls 213 and 213 is formed with a circular opening 213a having a predetermined diameter at a substantially symmetrical position at the center. And the roll part support member 216 which supports the roll part Pr of the paper filter P is comprised in the outer side of each side wall 213 so that it can protrude and retract with respect to the inside of the frame 211 through the opening 213a.

  The roll support member 216 is formed of a plastic molded product. As shown in FIG. 24, the side surface of the roll support member 216 is slightly smaller than the opening 213a and extends downward from the protrusion 216a. It is comprised with the leg part 216b of the predetermined shape which has flexibility. The convex portion 216a is disposed so as to slightly protrude inward of the frame 211 from the opening 213a of the side wall 213, and an inclined surface 216c that inclines so as to approach the side wall 213 downward in the lower half portion of the convex portion 216a. Is formed. By the left and right roll support members 216 configured as described above, the roll part Pr of the paper filter P is rotatably supported in a state where the convex part 216a is inserted into the core part Ps.

  Moreover, attachment and removal of the paper filter P to the paper holder unit 202 can be easily performed as follows. That is, when the roll part Pr of the paper filter P is inserted into the holder body 204 from below, the left and right end faces of the roll part Pr abut against the inclined surface 216c of the convex part 216a of the left and right roll part support members 216. However, each convex part 216a is pressed to the side wall 213 side, and thereby each convex part 216a protruding inward retracts to the side wall 213 side. That is, both the convex portions 216a and 216a are expanded to the left and right (a state indicated by a two-dot chain line in FIG. 24B). And when the core part Ps of the roll part Pr reaches the position of the convex part 216a, both the convex parts 216a return inward and engage with the core part Ps. As described above, the paper filter P can be attached simply by inserting the roll part Pr into the holder body 204 from below.

  On the other hand, when removing the roll part Pr of the paper filter P from the paper holder unit 202 such as when replacing the paper filter P, the roll part Pr is once pushed up in the holder body 204. In this case, the edge part of the lower half part of the core part Ps of the roll part Pr abuts on the inclined surface 216c of the left and right roll part support members 216. The convex portions 216a and 216a of the roll portion supporting member 216 are expanded to the left and right. And from this state, the roll part Pr is pulled out diagonally downward and forward. Thereby, the roll part Pr is taken out forward through the lower half part of the front surface of the holder main body 204. As described above, the removal of the paper filter P can be easily performed by the above-described procedure.

  In addition, each roll part supporting member 216 is firmly attached to the side wall 213 of the frame 211 by a predetermined retaining member 217 at the leg part 216b. Therefore, the roll support member 216 does not come off the side wall 213 of the frame 211 even if the convex part 216a is pressed by the roll part Pr during the attachment and removal of the paper filter P described above.

  As shown in FIGS. 22 and 23, the left and right paper feed drums 205, 205 have the same shape and size, extend in the left-right direction between the left and right side walls 213, 213 of the holder body 204, and both side walls. The drum shaft 218 rotatably supported by 213 and 213 is fixed to the drum shaft 218 at intervals in the left-right direction. The paper feed drum 205 has a circular arc portion 205a having a predetermined thickness and diameter, a linear portion 205b linearly connected to both ends of the circular arc portion 205a, and an inner edge of the linear portion 205b. A small arc portion 205c having a diameter smaller than the diameter of the portion 205a is formed in a predetermined shape. A large number of teeth are formed along the circumferential direction of the arc portion 205a.

  The paper set door 206 includes a door main body 221 extending in the left-right direction, and left and right arms 222, 222 extending at right angles from both ends of the door main body 221 and having a “<” shape on the side surface. A roller shaft 223 extending in the left-right direction is fixed to the rear surface of the door main body 221, and rollers 224 and 224 are rotatably supported at both ends thereof so as to correspond to the two paper feed drums 205 and 205, respectively. . Further, on the front surface of the door main body 221, a basket separating plate 225 for separating the extracted basket from the paper filter P when the extracted basket is discharged by the paper filter P is attached. When the paper holder unit 202 is attached to the drip unit 21, the heel separating plate 225 extends from the door body 221 to the vicinity of the guide roller 38 on the front side of the drip unit 21 so as to incline backward.

  The left and right arms 222, 222 have an engaging projection 222 a projecting from the outer surface of the front end of the left and right arms 222, 222 from the inside into a vertically long engaging hole 213 b formed at the front end of the left and right side walls 213 of the holder body 204. In the inserted state, it is rotatably supported. In addition, a spring 226 that urges the paper set door 206 toward the holder main body 204 is attached between a substantially central portion in the length direction of each arm 222 and the corresponding side wall 213. Further, the paper set door 206 is closed by protruding outward at a predetermined position near the door body 221 of each arm 222 and being locked by a locking portion 213c provided at the upper front end of the corresponding side wall 213. A lock portion 222b is provided for locking in the above state.

  The paper filter P is guided by the guide roller 204a at the lower end of the back surface of the holder body 204 and the guide roller 39 on the rear side of the drip unit 21, passes between the cylinder 23 and the filter block 32, and further on the front side of the drip unit 21. Guided by the guide roller 38 and set to hang down on the front side of the drip unit 21. The suspended portion of the paper filter P is sandwiched between the left and right paper feed drums 205 and 205 and the rollers 224 and 224 of the paper set door 206 configured as described above. The paper feed drums 205 and 205 are rotationally driven in a predetermined direction (clockwise in FIG. 23B) by the drum driving mechanism 208, whereby the paper filter P set as described above is moved into the holder main body 204. From the roll part Pr side.

  Also, as shown in FIGS. 22B and 23B, the paper feed drums 205 and 205 are respectively in contact with the rollers 224 and 224 corresponding to the respective linear portions 205b during standby other than the delivery of the paper filter P. It comes to oppose. In this case, the paper filter P is not sandwiched between the paper feed drum 205 and the roller 224. Therefore, the paper filter P can be easily pulled out manually below the paper feed drum 205 and the roller 224 during maintenance of the paper brewer 2A. Further, even when the paper filter P is pulled toward the filter block 32 as the filter block 32 rises during coffee extraction, the paper filter P is not sandwiched between the paper feed drum 205 and the roller 224. Problems such as P breaking can be avoided.

  Further, when the paper filter P is set between the paper feed drum 205 and the roller 224, as shown in FIG. 23 (b), the paper feed door 206 is opened by rotating the paper set door 206 to the front side. A relatively large space can be secured between the drum 205 and the roller 224. After passing the paper filter P through the space, the paper set door 206 is closed to the original state. In this way, the paper filter P can be easily set by opening and closing the paper set door 206.

  As shown in FIGS. 23B and 25, the paper breakage detection lever 207 is supported at the lower end of the back surface of the frame 211 of the holder main body 204 so as to be rotatable about a support shaft 207 a that extends horizontally in the left-right direction. ing. Further, the paper breakage detection lever 207 includes a long lever body 207b extending upward from the right end of the support shaft 207a (the upper end of FIG. 25A) and the left end of the support shaft 207a (of FIG. 25A). And a detection lever portion 207c slightly extending obliquely downward and rearward from the lower end portion. The former 207 b is located inside the frame 211, and the latter 207 c protrudes behind the frame 211. Further, a torsion spring 228 is attached to the left end portion of the support shaft 207a of the paper breakage detection lever 207, and the torsion spring 228 causes the paper breakage detection lever 207 to be attached clockwise in FIG. It is energized. Therefore, as shown in the figure, in the paper breakage detection lever 207, the lever body 207b is in contact with the outer peripheral surface of the roll part Pr of the paper filter P, and as shown in FIG. As the diameter decreases, the paper breakage detection lever 207 rotates clockwise while following it. Along with this, the detection lever portion 207c rotates upward, and this is detected by a paper break detection switch 247 described later on the paper drive unit 203 side.

  Next, the drum drive mechanism 208 that rotationally drives the left and right paper feed drums 205 and 205 will be described. As shown in FIG. 24, the drum driving mechanism 208 is provided in a space surrounded by the left side wall of the holder body 204, that is, the left side wall 213 of the frame 211 and the cover 215. The drum drive mechanism 208 includes a front pulley 231 fixed to an end protruding from the left side wall 213 of the drum shaft 218, a rear pulley 232 rotatably provided at the rear end of the left side wall 213, and both pulleys 231. 2, a timing belt 233 wound around 232, and a driven gear 235 that is fixed to a support shaft 234 common to the rear pulley 232 and disposed between the rear pulley 232 and the left side wall 213. The driven gear 235 is driven to rotate in a predetermined direction (clockwise in FIG. 24A) by a driving gear 244 described later of the paper driving unit 203, whereby the rear pulley 232 rotates in the same direction. The front pulley 231 also rotates in the same direction via 233. As a result, the left and right paper feed drums 205 and 205 rotate as described above to feed the paper filter P.

  A gear lock mechanism 236 that locks the driven gear 235 when the paper holder unit 202 is detached from the drip unit 21 and separated from the paper drive unit 203 is provided near the driven gear 235 of the frame 211. Yes. As shown in FIG. 26, the gear lock mechanism 236 includes a lock member 237 having a predetermined shape and a spring 238 that urges the lock member 237 backward (leftward in FIG. 26). The lock member 237 is formed in a horizontally long ring shape and extends forward from the ring portion 237a surrounding the boss portion 235a integrally provided on the side surface of the driven gear 235, and the left side wall 213 of the frame 211. And a slide portion 237b that is slidably supported in the front-rear direction. In addition, a lock convex portion 239 that protrudes rearward is provided at the front end portion inside the ring portion 237a.

  On the other hand, an engagement recess 235b that opens outward is formed at a predetermined position on the peripheral surface of the boss 235a of the driven gear 235. When the driven gear 235 is positioned at the standby position, the engagement recess 235b faces the lock portion 239 of the lock member 237 as shown in FIG.

  In the gear lock mechanism 236 configured as described above, the lock member 237 is attached by the spring 238 when the paper holder unit 202 and the paper drive unit 203 are separated from each other, as shown in FIG. The lock projection 239 is fitted into the engagement recess 235b of the driven gear 235. As a result, the driven gear 235 is locked. On the other hand, when the paper holder unit 202 and the paper drive unit 203 are connected to each other, the lock member abutting portion 241a at the front end of the paper drive unit 203 abuts against the ring portion 237a of the lock member 237 from the rear, and the spring The lock member 237 is pressed forward against the urging force of 238. As a result, the lock portion 239 of the lock member 237 is disengaged from the engagement recess 235b of the driven gear 235, and as a result, the driven gear 235 becomes rotatable.

  Thus, when the paper holder unit 202 is removed from the paper drive unit 203, the driven gear 235 is locked, so that it is connected to this via the timing belt 233 in addition to the rear pulley 232 integrated therewith. The front pulley 231 is also locked. As a result, both the paper feed drums 205 and 205 fixed to the drum shaft 218 which is a rotation shaft common to the front pulley 231 are also locked. Thereby, in a state where the paper holder unit 202 is detached from the paper drive unit 203, the paper feed drum 205 can be locked so that the linear portion 205b of each paper feed drum 205 faces the corresponding roller 224. .

  As described above, it is preferable that the paper feed drum 205 is stopped so that the linear portion 205b faces the roller 224 during standby. Therefore, the stop angle position of the paper feed drum 205 can be maintained until the paper holder unit 202 is detached from the paper drive unit 203 and attached to the paper drive unit 203 again during maintenance. The stop angle position of the paper feed drum 205 can be secured. Further, the lock of the paper feed drum 205 can be easily released by simply attaching the paper holder unit 202 to the paper drive unit 203.

  FIG. 27 shows the paper drive unit 203, and FIG. 28 shows the internal structure of the paper drive unit 203 together with the paper holder unit 202. As shown in both figures, the paper drive unit 203 includes a motor 242 disposed in the rear part of the case 241 that constitutes the outline thereof, and a gear box 243 connected to the motor 242 and attached to the right side surface of the case 241. And a drive gear 244 fixed to an output shaft 243a that is disposed in the front part of the case 241 and extends in the left-right direction (front and back direction in FIG. 28) of the gear box 243. On the left side surface of the drive gear 244, a cam 245 having an engagement recess 245a at a predetermined position is provided. In addition, a paper feed detection switch 246 including a micro switch that is switched ON / OFF by a cam 245 is disposed behind the drive gear 244. The paper feed detection switch 246 has a switch roller 246b at the tip of the operation lever 246a. The switch roller 246b is turned on by being pressed against the peripheral surface of the cam 245 of the drive gear 244. The switch roller 246b is opposed to the engagement recess 245a of the cam 245 and is released from being pressed.

  Further, the paper drive unit 203 is provided with a paper breakage detection switch 247 made of a micro switch at the lower end portion of the case 241, and a switching lever 248 for switching this ON / OFF is disposed below the paper drive detection switch 247. The paper breakage detection switch 247 has a switch roller 247b at the tip of the operation lever 247a. When the switch roller 247b is pressed from below by the switching lever 248, the switch is turned on, and the pressure is released. It will be in an OFF state by this.

  As shown in FIG. 28 (a), the switching lever 248 extends in the front-rear direction, and an ON switching position for switching the paper breakage detection switch 247 to the ON state with a fulcrum 248a at the rear end (left end in the figure) as a center. Between the (position shown in FIG. 28A) and the OFF switching position for switching to the OFF state (position shown in FIG. 28B), the case 241 is rotatably supported. Further, a bifurcated engagement portion 248b extending obliquely upward and obliquely downward is provided at the front end portion of the switching lever 248. Further, a torsion spring 249 is provided at a fulcrum 248a of the switching lever 248, and the torsion spring 249 urges the switching lever 248 counterclockwise in FIG.

  Therefore, as shown in FIG. 28A, in a state where the paper holder unit 202 and the paper drive unit 203 are separated, the paper breakage detection switch 247 is pressed by the switching lever 248 from below and is turned on. On the other hand, as shown in FIG. 5B, in the state where the paper holder unit 202 is attached to the paper drive unit 203, the detection lever portion 207c of the paper breakage detection lever 207 on the paper holder unit 202 side is moved to the paper drive unit 203. Engage with the engaging portion 248 b at the front end of the side switching lever 248.

  As shown in FIG. 23B, when the remaining amount of the paper filter P is sufficient, the detection lever portion 207c at the lower end of the paper breakage detection lever 207 is positioned so as to extend obliquely downward rearward. In this case, as shown in FIG. 28 (b), the detection lever portion 207c engages with the engagement portion 248b of the switching lever 248 of the paper drive unit 203 and presses it downward. As a result, the switching lever 248 is positioned at the OFF switching position. As a result, when the paper break detection switch 247 is in the OFF state, the control device 7 determines that the paper is not cut.

  On the other hand, with the use of the paper filter P by coffee extraction, the diameter of the roll part Pr of the paper filter P becomes smaller as shown by the two-dot chain line in FIG. The detection lever part 207c at the lower end of the detection lever 207 is positioned so as to extend substantially horizontally. Thus, the pressing of the switching lever 248 on the paper drive unit 203 side by the detection lever unit 207 is released. As a result, the switching lever 248 is positioned at the ON switching position by the urging force of the torsion spring 249. As a result, when the paper break detection switch 247 is in the ON state, the control device 7 determines that the paper has run out. Is done.

  Further, the paper breakage detection lever 207 is used to determine whether or not the paper holder unit 202 is properly attached to the paper drive unit 203 in addition to the paper breakage. That is, when the paper holder unit 202 is removed from the paper drive unit 203, as shown in FIG. 28A, the switching lever 248 of the paper drive unit 203 is located at the ON switching position, and the paper break detection switch 247 is turned on. It becomes a state. From this state, when the paper holder unit 202 is properly attached to the paper drive unit 203, the detection lever portion 207c of the paper breakage detection lever 207 is switched to the paper drive unit 203 side as shown in FIG. Engage with the engaging portion 248b of the lever 248 and press it downward. As a result, the switching lever 248 is located at the OFF switching position, and as a result, the paper breakage detection switch 247 is switched from the ON state to the OFF state, so that the control device 7 determines that the paper holder unit 202 is properly attached. Is done.

  On the other hand, when the paper holder unit 202 is not properly attached to the paper drive unit 203, the detection lever portion 207c of the paper breakage detection lever 207 is not properly engaged with the switching lever 248 on the paper drive unit 203 side. The switching lever 248 is maintained at the ON switching position, and as a result, the paper breakage detection switch 247 remains in the ON state. That is, when the paper holder unit 202 is attached to the paper drive unit 203, the paper breakage detection switch 247 is supposed to be in the OFF state, but the paper breakage detection switch 247 remains in the ON state. It is possible to determine that the paper holder unit is not properly attached. As described above, it is possible to easily determine whether or not the paper holder unit 202 is properly attached to the paper drive unit 203 by using the paper break detection lever 207.

  Next, the operation of the coffee brewing apparatus 2 configured as described above will be described with reference to the flowcharts of FIGS. 29 to 33 and the operation diagrams of FIGS. 34 to 44. In the operation diagram, the rotation of the cam disk 55 is mainly shown in the upper stage, and the operations of the filter block 32 and the cylinder head 101 are mainly shown in the lower stage. In the following description, first, the coffee cooking operation by the paper brewer 2A will be described with reference to the operation diagrams of FIGS. 34 to 37, and then the coffee cooking operation by the mesh brewer 2B will be described.

  FIG. 29 shows the execution processing of the sales operation when there is a sales instruction based on the operation of the product selection button of the coffee by the purchaser in the cup type vending machines 1A and 1B each having the paper brewer 2A and the mesh brewer 2B ( Main routine). This control program corresponds to both the cup type vending machines 1A and 1B, and is common to both the brewers 2A and 2B.

  FIG. 34 (a) shows the standby state of the paper brewer 2A. In this standby state, the cam disk 55, the filter block 32, and the cylinder head 101 are positioned at their standby positions, and the upper surface and the lower surface of the cylinder 23 are all open. In this standby state, as shown in (1) of FIG. 45, the first air pinch 8A, the second air pinch 8B, and the beverage pinch 8C are all in an open state, and accordingly, transport corresponding to the pinches 8A to 8C, respectively. Tubes 9A to 9C are all open.

  In the main routine of the selling operation shown in FIG. 29, first, in step 1 (illustrated as “S1”, the same applies hereinafter), the initial process (subroutine) for discharging the extracted soot is executed. FIG. 30 shows the initial process for discharging the extracted soot. As shown in the figure, in this subroutine, it is first determined whether or not the paper filter P is present (step 21). Specifically, the paper drive unit 203 is attached to the brewer body 20, and the determination is made based on whether or not the motor 242 of the paper drive unit 203 is electrically connected to the control device 7. Since the paper brewer 2A includes the paper drive unit 203, the determination result in Step 22 is YES, and this subroutine is terminated as it is.

  Returning to the main routine of FIG. 29, in step 2, the filter block 32 is raised. Specifically, in the main body drive unit 22, when the first motor 121 of the cam drive mechanism 104 rotates in a predetermined direction, the cam disk 55 of the drip unit 21 rotates clockwise in FIG. Thereby, the slider 56 engaged with the first cam groove 53 of the cam disk 55 is raised, and the filter block 32 supported by the slider 56 is raised together with the paper filter P on the upper side. In this case, the lower edge portion of the long hole 56 b of the slider 56 abuts on the engaging convex portion 58 a of the waste liquid tube pinch member 58 during the ascent of the slider 56, and then, as the slider 56 rises, the waste liquid tube pinch The member 58 is also raised. Then, as shown in FIG. 34 (b), when the cam disk 55 rotates about 180 degrees from the standby position, the filter block 32 presses the paper filter P against the lower surface of the cylinder 23, and Seal the bottom surface. In this case, the waste liquid tube pinch member 58 closes the waste liquid tube 50 by crushing the waste liquid tube 50 between the pressing portion 58 b and the pressing spring 59.

  Next, in this state, a predetermined amount of raw material (for example, 10 g) and hot water (for example, 105 ml) are respectively supplied from the raw material supply device 3 and the hot water supply device 4 into the cylinder 23 (step 3). Specifically, the raw material is supplied to the cylinder 23 through the raw material inlet 37 a of the holder cover 37 and the auxiliary raw material chute 115 of the cylinder head 101. Further, when the purchaser operates the coffee increase button and executes a large-capacity extraction described later, a larger amount of raw material (for example, 15 g) is supplied to the cylinder 23. On the other hand, hot water is supplied to the cylinder 23 via the hot water supply port 37 b of the holder cover 37 and the auxiliary hot water supply nozzle 116 a of the cylinder head 101. In this raw material / hot water supply state, as shown in FIG. 45 (2), only the first air pinch 8B is open, and the other pinches 8A and 8C are all closed.

  In addition, after supplying the raw material and hot water, the air pump 107 is operated for a predetermined time in the above-described state to supply the stirring air to the cylinder 23 (step 4). Specifically, air is sent from the air pump 107 to the filter block 32 via the second air transfer tube 9B and the filter block tube 32a. Thus, the air passes through the mesh filter 72 and the paper filter P of the filter block 32, and the raw material and hot water in the cylinder 23 are agitated.

  After the completion of the stirring, as shown in FIG. 34 (c), a predetermined amount of hot water (for example, 50 ml) is supplied from the hot water supply device 4 into the cylinder 23 as the back hot water (step 5). By supplying the hot water in this way, even if the raw material adheres to the upper part of the inner surface of the cylinder 23 when the raw material is supplied, the raw material can be detached from the inner surface of the cylinder 23 by the hot water. As a result, all the raw materials supplied to the cylinder 23 can be used effectively for cooking coffee, and the raw material adhering to the cylinder 23 is prevented from being used at the next sale, so that the next sale And you can cook good quality coffee.

  Next, in the main body drive unit 22, the second motor 131 of the cylinder head / scraper drive mechanism 105 rotates in a predetermined direction, so that the cylinder head drive unit rotates by a predetermined angle (for example, 180 degrees). Cylinder head 101 advances (step 6). Specifically, as shown in FIG. 35A, the head main body 111 of the cylinder head 101 reaches directly above the cylinder 23. Then, in this state, the air pump 107 is operated again for a predetermined time, whereby the stirring air is supplied to the cylinder 23 as in the above-described stirring (step 7). As described above, coffee is extracted inside the cylinder 23.

  Next, the first motor 121 of the cam drive mechanism 104 rotates again, whereby the cam disk 55 further rotates. Then, as shown in FIG. 35 (b), when the cam disk 55 rotates about 240 degrees from the standby position, the cylinder head lock member 57 engaged with the second cam groove 54 of the cam disk 55 becomes the same. In the drawing, it is slightly rotated clockwise, and the head guide rod 113 is pushed downward by the lock portion 57b to lock the cylinder head 101 (step 8). Thereby, the cylinder head 101 seals the head main body 111 in a state where the head main body 111 is in contact with the upper surface of the cylinder 23. In this state, as shown in FIG. 45 (3), the first air pinch 8A and the beverage pinch 8C are in an open state, while the second air pinch 8B is in a closed state.

  In step 9, a coffee extraction process (subroutine) is executed. FIG. 31 shows a coffee extraction process. As shown in the figure, in this subroutine, first, similarly to step 21 described above, it is determined whether or not the paper filter P is present (step 31). In the paper brewer 2A, the determination result in step 31 is YES, and in the subsequent step 32, it is determined whether or not the large-capacity extraction is performed. This large-capacity extraction is a coffee extraction process executed when the purchaser operates the coffee increase button.

  When the coffee increase button is not operated (step 32: NO), the process proceeds to step 33, and the air pump 107 is operated for a predetermined time to supply unloading air to the cylinder 23. Specifically, air is sent from the air pump 107 to the cylinder head 101 via the first air transfer tube 9 </ b> A and supplied to the cylinder 23. The air pressurizes the inside of the cylinder 23, and the coffee extracted inside is filtered by the paper filter P and the mesh filter 72, and the filter block 32, the filter block tube 32a, the beverage transport tube 9C, the mixing bowl 5 and the beverage It passes through the tube 16 in order and is supplied to the cup C set in the commodity outlet 10.

  On the other hand, when the coffee increase button is operated (step 32: YES), the process proceeds to step 34 to execute a large-capacity extraction process (subroutine) (step 34). FIG. 32 shows the large capacity extraction process. As shown in the figure, in this subroutine, first, the carry-out air (first time) is supplied to the cylinder 23 in the same manner as in step 33 of FIG. 31 described above (step 41). Thereby, the coffee extracted in the cylinder 23 is supplied to the cup C as coffee by the first extraction. However, in this case, it is preferable that the air pump 107 is stopped before the coffee in the cylinder 23 is completely carried out, and the coffee is carried out by the residual pressure of the air already supplied to the cylinder 23. Thereby, the fine powder of the raw material is carried out together with the coffee and supplied to the cup C, thereby reducing the quality of the coffee without any miscellaneous taste to the cup C.

  Next, when the first motor 121 of the cam drive mechanism 104 rotates in the opposite direction, the cam disk 55 also rotates in the opposite direction by a predetermined angle (about 60 degrees, about 180 degrees from the standby position). In this case, as shown in FIG. 35C, the lock of the cylinder head 101 is released by releasing the lock of the head guide rod 113 by the cylinder head lock member 57 (step 42). In this case, the head guide rod 113 is pushed up by the convex portion 55 b of the cam disk 55.

  Next, when the second motor 131 of the cylinder head / scraper driving mechanism 105 rotates in the same direction as described above, the cylinder head driving unit further rotates by a predetermined angle (for example, 180 degrees), thereby FIG. As shown in a), the cylinder head 101 moves backward and returns to the standby position (step 43). Thereby, the upper surface of the cylinder 23 is opened. Then, a predetermined amount of hot water (for example, 140 ml) is supplied from the hot water supply device 4 into the cylinder 23 as additional hot water (step 44).

  Further, after supplying the additional hot water, the air for stirring is supplied to the cylinder 23 in the same manner as in Step 4 (Step 45), and the existing raw material and the additional hot water in the cylinder 23 are stirred. After the completion of the stirring, the cylinder head 101 at the standby position is advanced to the position just above the cylinder 23 (step 46) and the cylinder head 101 is locked (step 47) in the same manner as in steps 6 and 8. Thereby, as shown in FIG. 37 (b), the upper surface of the cylinder 23 is sealed by the cylinder head 101. Then, in the same manner as Step 33 of FIG. 31, carry-out air (second time) is supplied to the cylinder 23 (Step 48). Thereby, the coffee extracted in the cylinder 23 is supplied to the cup C as coffee by the second extraction.

  When the above-described large-capacity extraction is performed, the outlet door 10a of the product outlet 10 cannot be opened by a lock mechanism (not shown) until the supply of coffee to the cup C by the second extraction is completed. It has become. Thereby, after the supply of the coffee to the cup C by the first extraction is completed, it is possible to prevent the purchaser from taking the cup C out of the product outlet 10 by mistake.

  Returning to the main routine of FIG. 29, after completion of the coffee extraction process in step 9 described above, the cylinder head 101 is unlocked (step 10) in the same manner as in step 42 of FIG. Similarly, the cylinder head 101 moves backward and returns to the standby position (step 11).

  Next, in the above state, as shown in FIG. 36 (a), a predetermined amount of hot water (for example, 8 ml) is supplied from the hot water supply device 4 to rinse the inner surface of the cylinder 23 (first time, first time As washing water, it is put into the cylinder 23 (step 12). As described above, the rinsing hot water supplied to the cylinder 23 via the auxiliary hot water supply nozzle 116a is caused by the internal shape of the cylinder 23 and the positional relationship of the auxiliary hot water supply nozzle 116a of the cylinder head 101 located at the standby position. Flows down while spreading along the inner surface and spreading in the circumferential direction. Thereby, after carrying out the coffee from the cylinder 23, the extraction slag adhering to the inner surface of the cylinder 23 flows down together with the rinse water.

  Thereafter, the first motor 121 of the cam drive mechanism 104 rotates in the same direction as described above, whereby the cam disk 55 rotates by a predetermined angle (about 180 degrees), thereby, as shown in FIG. The filter block 32 descends (step 13) and returns to the standby position. In this case, the extracted soot G remains on the paper filter P on the filter block 32. In this state, as shown in the figure, a predetermined amount of hot water (for example, 10 ml) is further poured into the cylinder 23 as rinsing hot water (second time, second washing water) from the hot water supply device 4 (step). 14). By this second rinsing hot water, the extracted soot adhering to and remaining on the lower end of the cylinder 23 is washed away and falls onto the paper filter P.

  Then, the extracted soot discharge process (subroutine) is executed (step 15), the main routine of FIG. 29 is terminated, and the process returns to the standby state. FIG. 33 shows the extracted soot discharging process. As shown in the figure, in this subroutine, first, similarly to step 21 described above, it is determined whether or not the paper filter P is present (step 51). In the paper brewer 2A, the determination result in this step 51 is YES, and the paper filter P is fed by a predetermined length (step 52), whereby the extraction soot G on the paper filter P is removed as shown in FIG. Drain forward. In this case, as shown in the figure, the extraction basket G is separated from the paper filter P by the basket separation plate 225 of the paper holder unit 202. Then, the discharged extracted soot G is accommodated in the lower soot bucket B.

  Thereafter, the first motor 121 of the cam drive mechanism 104 rotates in the opposite direction to the above, whereby the cam disk 55 rotates by a predetermined angle (about 40 degrees, standby position). As a result, the filter block 32 slightly rises and returns to the standby position shown in FIG. 34 (a) (step 53).

  Thus, the sale of coffee by the cup type vending machine 1A provided with the paper brewer 2A is completed.

  Next, the coffee cooking operation by the mesh brewer 2B will be described with reference to the operation diagrams of FIGS. The coffee cooking operation by the mesh brewer 2B is different from the paper brewer 2A described above only in the three subroutines of steps 1, 10 and 15 in the main routine of FIG. 29, and the other controls are described above. This is common with the paper brewer 2A. Therefore, in the following description, these subroutines will be mainly described.

  Further, in the mesh brewer 2B, the discharging direction of the extraction basket can be set in advance so as to be discharged to the front or rear of the drip unit 21. Further, the mesh brewer 2B alternates forward and backward every predetermined number of times (for example, 1 to 10 times). It can be set to be discharged. Therefore, in the following description, first, referring to the operation diagrams of FIGS. 38 to 41, the mesh brewer 2B in which the discharging direction of the extraction basket is set forward (hereinafter, referred to as “pre-discharge mesh brewer 2B” as appropriate). Next, with reference to the operation diagrams of FIGS. 42 to 44, the mesh brewer 2B in which the discharge direction of the extraction basket is set to the rear (hereinafter referred to as “rear discharge mesh brewer 2B” as appropriate) Will be described.

  FIG. 38A shows a standby state of the front discharge mesh brewer 2B. In this standby state, the cam disc 55, the filter block 32, and the cylinder head 101 are positioned at the respective standby positions, and the scraper 102 is behind the filter block 32 in the same manner as the paper brewer 2A described above. Located in position.

  As shown in FIG. 29, in the main routine of the sales operation, first, the initial processing for discharging the extracted soot, which is a subroutine, is executed in step 1, and in this subroutine, there is a paper filter P as shown in FIG. Whether or not (step 21). In this example, since the mesh brewer 2B does not include the paper drive unit 203, the determination result in step 21 is NO, and the process proceeds to step 22, in which it is determined whether the direction in which the scraper 102 is discharged is forward. Determine. In the pre-discharge mesh brewer 2B of the present example, the discharge direction of the extracted soot is set to the front, so the determination result in step 22 is YES, and this subroutine is terminated as it is.

  Returning to the main routine of FIG. 29, steps 2 to 8 are executed. FIGS. 38 (b), (c) and FIGS. 39 (a), (b) are operation diagrams of the paper brewer 2A described above, respectively. FIGS. 34 (b), (c), 35 (a), (b) ).

  Next, in step 9, a coffee extraction process that is a subroutine is executed. In this subroutine, as shown in FIG. 31, it is determined whether or not the paper filter P is present (step 31). In this example, the determination result of step 31 is NO, step 33 is executed, and this subroutine is terminated. As a result of the execution of step 33, the coffee extracted in the cylinder 23 is filtered by the mesh filter 72 and supplied to the cup C of the product outlet 10.

  Returning to the main routine of FIG. 29, steps 10 to 14 are executed. FIGS. 39 (c), 40 (a), and (b) correspond to FIGS. 35 (c), 36 (a), and (b), respectively, which are operation diagrams of the paper brewer 2A described above. In this example, in step 13, the cam disk 55 rotates to an angular position exceeding the standby position (about −40 degrees from the standby position). In this case, as shown in FIG. 40B, the slider 56 engages with the proximity portion 61a of the first cam groove 53 of the cam disk 55 via the engagement convex portion 56a. As described above, the filter block 32 once descends to the standby position, then rises to a position slightly higher than that position and stops, and the extracted soot G remains on the mesh filter 72.

  Next, in step 15, the extracted soot discharging process which is a subroutine is executed. In this subroutine, as shown in FIG. 33, it is determined whether or not the paper filter P is present (step 51). In this example, the determination result is NO and the process proceeds to step 54. In this step 54, it is determined whether or not the discharging direction of the extraction basket is set to the front. In this example, the determination result is YES, the scraper 102 located at the standby position moves forward, and the extraction rod G is discharged forward (step 57). Specifically, when the second motor 131 of the cylinder head / scraper driving mechanism 105 rotates in a predetermined direction, the scraper driving unit 133 rotates about 180 degrees. As a result, as shown in FIG. 40 (c), the scraper 102 moves from the standby position to the front extraction basket discharge position. In this case, the lower end of the scraper main body 102b scrapes the extracted soot G on the mesh filter 72 while sliding on the mesh filter 72 of the filter block 32, and discharges it forward.

  Further, after the extraction rod G is discharged forward, the first motor 121 of the cam drive mechanism 104 rotates in a predetermined direction, whereby the cam disk 55 is rotated clockwise by a predetermined angle (for example, about 40 in FIG. 40). Rotate) and return to the standby position. As a result, as shown in FIG. 41A, the filter block 32 is slightly lowered and returned to the standby position (step 58). In this state, a gap is secured between the mesh filter 72 of the filter block 32 and the lower end of the scraper body 102b.

  Thereafter, the second motor 131 of the cylinder head / scraper driving mechanism 105 rotates in the same direction as described above, so that the scraper driving unit 133 rotates about 180 degrees. As a result, as shown in FIG. 41B, the scraper 102 moves backward and returns to the standby position (step 59).

  Thus, the sale of coffee by the cup type vending machine 1B provided with the front discharge mesh brewer 2B is completed.

  Next, the operation of the rear discharge mesh brewer 2B in which the discharge direction of the extraction basket is set to the rear will be described. FIG. 42A shows a standby state of the rear discharge mesh brewer 2B. This standby state is the same as that of the above-described front discharge mesh brewer 2B, and the scraper 102 is located at the rear standby position.

  As shown in FIG. 29, in the main routine of the sales operation, first, the initial process for discharging the extracted soot, which is a subroutine, is executed in step 1. In this subroutine, the determinations in steps 21 and 22 in FIG. 30 are performed. This step 22 determines whether or not the discharging direction of the extracted soot by the scraper 102 is forward, and in the mesh brewer 2B of this example, the discharging direction of the extracted soot is set to the rear. The determination result of 22 is “NO”, and the process proceeds to Step 23.

  In step 23, the second motor 131 of the cylinder head / scraper driving mechanism 105 rotates in a predetermined direction, so that the scraper driving unit 133 rotates about 180 degrees. As a result, as shown in FIG. 42 (b), the scraper 102 moves from the standby position to the same position (hereinafter referred to as “front standby position”) that is the same as the above-described extraction basket discharge position.

  Returning to the main routine of FIG. 29, steps 2 to 14 are executed. FIGS. 42 (c), 43 (a) to 43 (c) and FIGS. 44 (a) and 44 (b) are operation diagrams of the above-described front discharge mesh bluer 2B for discharging the extraction basket forward. This corresponds to b), FIGS. 39 (a) to 39 (c) and FIGS. 40 (a) and 40 (b).

  Next, at step 15, the extracted soot discharging process which is a subroutine is executed, and in this subroutine, the determination at steps 51 and 54 in FIG. 33 is performed. In this step 54, it is determined whether or not the discharging direction of the extracted soot is forward, and in the post-discharge mesh brewer 2B of this example, the discharging direction of the extracted soot is set to the rear. The determination result is NO, and the process proceeds to step 55.

  In step 55, the second motor 131 of the cylinder head / scraper drive mechanism 105 rotates in the same direction as described above, so that the scraper drive unit 133 rotates about 180 degrees. Thus, as shown in FIG. 44 (c), the scraper 102 moves backward from the front standby position, thereby discharging the extraction basket G rearward and returning to the standby position.

  Thereafter, the first motor 121 of the cam drive mechanism 104 rotates in a predetermined direction, whereby the cam disk 55 rotates clockwise by a predetermined angle (for example, about 40 degrees) in FIG. Thereby, the filter block 32 is slightly lowered and returned to the standby position (see step 56, FIG. 42A).

  Thus, the sale of coffee by the cup type vending machine 1B provided with the rear discharge mesh brewer 2B is completed.

  As described above in detail, according to the present embodiment, after the coffee is carried out from the cylinder 23, the rinse water is supplied to the cylinder 23. Therefore, it can be easily detached from the cylinder 23. Further, since the rinse water is further supplied to the cylinder 23 after the filter block 32 is lowered, the extracted soot adhering to and remaining on the lower end portion of the cylinder 23 is washed away with the rinse water to the lower extract soot G. The cylinder 23 can be cleaned. Thereafter, the extracted mash G is discharged in preparation for the next sale (extraction) of coffee. As described above, by rinsing hot water supplied to the cylinder 23 before discharging the extraction gruel G, the rinsing of the cylinder 23 is performed during the sale of coffee and every sale. High quality coffee can be provided while ensuring continuous sales of coffee.

  Further, the elapsed time after the coffee is extracted is measured by the control device 7, and when the measured elapsed time reaches a predetermined time, the paper filter 2P performs the paper filter P in the same manner as the extraction. It is preferable to perform the discharging operation of the extracted soot by driving the scraper 102 in the mesh brewer 2B in the same manner as during extraction. As a result, a small amount of extracted soot that adheres and remains on the inner surface of the cylinder 23, is detached by drying or the like, and falls on the block filter 32 can be discharged. Thereby, the extracted mash is not used for the extraction of the next coffee, and therefore, the quality of the coffee can be prevented from being deteriorated by the next extraction. In addition, you may be made to perform said discharge operation | movement of the extraction basket in the time slot | zone (for example, predetermined time of midnight) when the cup type vending machine 1 is not used much.

  Next, a modified example of the cylinder 23 and the rinsing of the coffee conveyance path by the coffee brewing device 2 will be described in order with reference to FIGS. 46 to 51.

  46 to 48 show modified examples of the cylinder 23. The cylinder 301 is common to the cylinder 23 in the following points. That is, the cylinder 301 is made of plastic and extends in the vertical direction, and is formed in a cylindrical shape whose upper and lower surfaces are open. The cylinder 301 has a handle 302, a guide portion 303, and a hot water guide wall 304 that are similar to the handle 25, guide portion 26, and hot water guide wall 27 of the cylinder 23, respectively. Further, the cylinder 301 is provided with a hot water diffusion convex portion 305 (convex portion) having the same shape as the hot water diffusion convex portion 28 of the cylinder 23. However, the hot water diffusion convex portion 305 is located at a position higher than the hot water diffusion convex portion 28 provided at the central portion in the vertical direction of the cylinder 23 (a position at half the height dimension), specifically, the cylinder 301. Is provided at a position of about ¼ of the height dimension from the upper end.

  The cylinder 301 is different from the cylinder 23 in the following points. That is, at a predetermined position of the hot water diffusion convex portion 305 of the cylinder 301, there are provided a hot water contact portion 306 to which hot water supplied from above and a raw material contact portion 307 to which raw material supplied from above are applied. Specifically, the hot water contact portion 306 faces the lower side of the auxiliary hot water supply nozzle 116a of the raw material / hot water guide member 114 when the cylinder head 101 is located at the standby position, and has a predetermined length inside the cylinder 301. It is provided to protrude. Further, as shown in FIG. 48 (a), the upper surface of the hot water contact portion 306 is slightly higher than the hot water diffusion convex portion 305, and is slightly inclined forwardly inward. On the other hand, the raw material contact portion 307 faces the auxiliary raw material chute 115 of the raw material / hot water guide member 114 and is provided so as to protrude inward of the cylinder 301 by a predetermined length, like the hot water contact portion 306. . Further, as shown in FIG. 48B, the upper surface of the raw material receiving portion 307 is slightly lower than that of the hot water diffusion convex portion 305, and is slightly inclined forward and downward.

  Furthermore, in the cylinder 301, an inclined surface 304 a is formed at a predetermined position on the upper end portion of the hot water guide wall 304. The inclined surface 304 a extends from the position corresponding to the hot water contact portion 306 over the entire clockwise direction of the hot water guide wall 304, and is inclined forward and downward toward the inside of the cylinder 301. Note that the upper surface of the portion other than the inclined surface 304 a of the hot water guide wall 304 is formed horizontally, like the hot water guide wall 27 of the cylinder 23.

  In the cylinder 301 configured as described above, hot water and raw material supplied from above are guided into the cylinder 301 as follows. That is, of the hot water supplied to the cylinder 301 via the auxiliary hot water supply nozzle 116a, the hot water hitting the hot water hitting portion 306 from above is temporarily applied to the hot water hitting portion 306 as shown by the arrow in FIG. It is received and flows down into the cylinder 301 while being guided in the circumferential direction along the hot water diffusion convex part 305 around the center.

  On the other hand, of the raw materials supplied to the cylinder 301 via the auxiliary raw material chute 115, the raw material that hits the raw material hitting portion 307 from above jumps inward of the cylinder 301 as shown by the arrow in FIG. To be skipped. Thereby, the raw material supplied to the cylinder 301 is not in a single state at the bottom of the cylinder 301 but in a relatively expanded state.

  By supplying hot water and raw materials to the cylinder 301 as described above, hot water and raw materials are mixed in the cylinder 301 in a relatively uniform state in a short time when selling coffee. Thereby, the extraction efficiency of coffee can be improved and good quality coffee can be cooked. Further, when the cylinder 301 is rinsed, the rinse water that has hit the hot water contact portion 306 from above is temporarily received, so that the rinse water can be guided further from the hot water contact portion 306 along the hot water diffusion convex portion 305. As a result, the rinsing effect of the cylinder 301 can be improved.

  In addition, when the positions of the cylinder 23 and the auxiliary hot water supply nozzle 116a that supplies hot water to the cylinder 23 are slightly shifted from the proper positions due to manufacturing and assembly errors, the following problems occur. There is. That is, in the cylinder 23, since the entire upper surface of the hot water guide wall 27 is horizontal, when most of the hot water supplied from the auxiliary hot water supply nozzle 116a hits the upper surface of the hot water guide wall 27 from above, a part of the hot water is lost. There is a risk of splashing on the upper surface of the hot water guide wall 27 and spilling outside the cylinder 23. On the other hand, in the cylinder 301, since the inclined surface 304a is formed at a predetermined position on the upper end portion of the hot water guide wall 304, the positions of the cylinder 301 and the auxiliary hot water supply nozzle 116a are slightly shifted from the proper positions. Even in the case where the cylinder 23 is used, the above-described hot water splash can be suppressed, thereby preventing the hot water from spilling outside the cylinder 301.

  Next, rinsing of the coffee conveyance passage (hereinafter referred to as “passage rinsing”) by the coffee extraction device 2 (extraction device main body) will be described with reference to the flowcharts of FIGS. 49 to 51. In addition to cylinders 23 and 301 (hereinafter, only “301” is indicated), this passage rinse is a coffee conveyance passage, specifically, a filter block tube 32a, a beverage conveyance tube 9C, a mixing bowl 5 and a beverage tube. 16 is performed when a maintenance operator operates a predetermined button, every predetermined number of times of sales, or at a predetermined time such as midnight.

  The passage rinsing is performed using the above-described control program for the coffee sales operation of the coffee brewing apparatus 2. Therefore, in the following description, in FIG. 49 to FIG. 51, the same processing steps as those in FIGS. 29, 32 and 33 are given the same step numbers, and the processing different from the time of selling coffee will be mainly described. Note that the processing of the step numbers missing in FIG. 49 to FIG. 51 with respect to the step numbers in FIGS. 29, 32 and 33 may be skipped on the condition that the path rinse is being executed in the control program. Or the time set for executing is skipped by setting the value to 0.

  FIG. 49 shows passage rinse execution processing. In this process, first, the filter block 32 is raised (step 2), and then a predetermined amount (for example, 80 ml) of hot water (third water), that is, rinsing hot water (first rinsing water) is supplied into the cylinder 301 ( Step 3A). Unlike the step 3 at the time of the coffee selling operation, this hot water supply process operates only the hot water supply device 4 without operating the raw material supply device 3, and therefore, only the rinse water is supplied to the cylinder 301.

  Next, the same agitation air supply (step 4), forward movement of the cylinder head 101 (step 6), and locking of the cylinder head 101 (step 8) as in the coffee sales operation are executed in order. In this case, the inside of the cylinder 301 is cleaned with rinse water by supplying the stirring air in Step 4.

  Next, in step 9A, a rinsing process for the coffee conveyance path is performed. This rinsing process corresponds to the coffee extraction process (step 9) described above, more specifically, the large-capacity extraction process (step 34). As shown in FIG. 50, in this rinsing process, unloading air (first time) is first supplied to the cylinder 301 sealed by the cylinder head 101 (step 41). Thereby, the rinse water in the cylinder 301 is conveyed to the product take-out port 10 through the coffee conveyance passage, that is, the filter block tube 32a, the beverage conveyance tube 9C, the mixing bowl 5 and the beverage tube 16 in order while being pumped. The In this way, the rinse water is pumped in the coffee transport passage, whereby each portion of the transport passage is cleaned. The rinse water conveyed to the product outlet 10 is discharged into the bucket B.

  Next, the cylinder head 101 is unlocked (step 42), the cylinder head 101 is retracted (step 43), the additional hot water is supplied to the cylinder 301 (step 44), and the cylinder head 101 is moved forward (step 44). Step 46) and locking of the cylinder head 101 (step 47) are executed in order. In this case, a predetermined amount (for example, 70 ml) of rinsing hot water (second rinsing water) is supplied into the cylinder 301 by supplying additional hot water (fourth water) in step 44.

  Next, as in step 41, carry-out air (second time) is supplied to the cylinder 301 (step 48). Thereby, each site | part of the conveyance path | route of coffee is wash | cleaned again.

  Returning to FIG. 49, the unlocking of the cylinder head 101 (step 10), the retreating of the cylinder head 101 (step 11), and the lowering of the filter block 32 (step 13) are performed in the same manner as in the coffee sales operation.

  Next, in step 15A, post-processing is executed. This post-processing corresponds to the extraction soot discharging process (step 15) described above. As shown in FIG. 51, in this post-processing, it is determined whether or not the paper filter P is present (step 51). When the coffee extraction device 2 is the mesh brewer 2B, the determination result is NO and the post-processing is performed as it is. And return to FIG. 49 to end the passage rinsing. On the other hand, if the determination result in step 51 is YES and the coffee brewing device 2 is the paper brewer 2A, the paper filter P is fed by a predetermined length (step 52), the post-processing is completed, and the passage rinsing is completed. In step 52, the paper filter P wetted with rinsing water is sent to the front of the cylinder 301, so that the clean paper filter P is placed between the cylinder 301 and the filter block 32 in preparation for the next sale of coffee. Set.

  As described above, since the passage rinsing is executed using the control program for the coffee sales operation, it is not necessary to newly create a control program dedicated to rinsing, and therefore the passage rinsing is executed relatively easily. can do. Also, in the passage rinse, rinse water is pumped twice into the coffee transport passage, that is, the filter block tube 32a, the beverage transport tube 9C, the mixing bowl 5 and the beverage tube 16, so that It is possible to effectively remove the scale of coffee adhering to the inner surface by the water of the rinse water, and to clean the conveyance path. The passage rinsing is executed by the control program corresponding to the large-capacity extraction process at the time of the sales operation. Therefore, the filter block 32 is moved up and down once compared with the case where the control program corresponding to the normal extraction process is repeated twice. This can reduce the rinsing time.

  In addition, this invention can be implemented in various aspects, without being limited to the said embodiment described. For example, in the embodiment, the case where the present invention is applied to a coffee extraction device has been described. However, it is of course possible to apply the present invention to a beverage extraction device that extracts tea-based beverages using tea leaves as a raw material. Further, the detailed configurations of the paper brewer 2A and the mesh brewer 2B shown in the embodiment are merely examples, and can be appropriately changed within the scope of the present invention.

1 Cup type vending machine 2 Coffee extraction device (beverage extraction device, extraction device body)
3 Raw material supply device (raw material supply means)
4 Hot water supply equipment (cleaning water supply means, water supply means)
7 Control device (control means, timing means)
20 Bruer body 23 Cylinder (extraction vessel)
28 Hot water diffusion convex part (convex part)
32 Filter block (beverage filtration part)
51 Cylinder open / close mechanism 72 Mesh filter (permanent filter)
101 Cylinder head (seal member)
102 Scraper (Extracted soot discharge means)
104 Cam drive mechanism (Drink filter drive means)
105 Cylinder head / scraper drive mechanism (scraper drive means, seal member drive mechanism)
107 Air pump 201 Paper filter delivery device (paper delivery means)
202 Paper holder unit 203 Paper drive unit 301 Cylinder 305 Hot water diffusion convex part (convex part)
306 Hot water per part 307 Raw material per part C Cup P Paper filter

Claims (9)

A beverage extraction device for extracting a beverage using raw materials and water,
An extraction container for opening a lower surface, supplied with raw materials and water, and for extracting a beverage inside;
A permanent filter that is repeatedly used on the upper surface, and below the extraction container, a sealing position that seals the lower surface of the extraction container, and an open position that is lower than the sealing position and opens the lower surface of the extraction container Beverage that is provided so as to be able to move up and down and is located in the sealing position, and when the beverage that is extracted in the extraction container and carried out of the extraction container passes, the beverage is filtered by the permanent filter. A filtration section;
A beverage filtration unit driving means for driving the beverage filtration unit;
Extracted soot discharging means for discharging the extracted soot that is the raw material after extraction remaining on the upper side of the permanent filter,
Cleaning water supply means for supplying cleaning water for cleaning the inner surface of the extraction container to the extraction container;
Control means for controlling the beverage filtration unit driving means, the extraction tub discharge means and the washing water supply means;
With
After the beverage is carried out from the extraction container via the beverage filtration part, the first washing water is supplied to the extraction container by the control by the control means, and the beverage filtration part is moved from the seal position to the open position. The beverage extraction device is characterized by discharging the extraction basket after being moved to.   The control device according to claim 1, wherein after the beverage filtering unit is moved to the open position, the second washing water is further supplied to the extraction container, and then the extraction basket is discharged. The beverage extraction apparatus according to 1. A timing means for measuring the elapsed time after the beverage is extracted,
3. The beverage extraction device according to claim 1, wherein when the measured elapsed time reaches a predetermined time, the control unit causes the extraction pad discharging unit to perform the discharging operation of the extraction pad. . The extracted soot discharging means is
On the upper side of the beverage filtration unit, it is movably provided between a predetermined standby position and a predetermined extraction basket discharge position with the beverage filtration unit in between, and by moving from the standby position to the extraction basket discharge position A scraper for scraping and discharging the extracted soot while sliding on the permanent filter;
Scraper driving means for driving the scraper;
The beverage extraction device according to any one of claims 1 to 3, wherein the beverage extraction device is provided. The extracted soot discharging means is
The degree of filtration is higher than that of the permanent filter, and a continuous paper filter for filtering the beverage and discharging the extraction koji;
A paper delivery means for delivering the paper filter between the extraction container and the beverage filtration unit;
The beverage extraction device according to any one of claims 1 to 3, wherein the beverage extraction device is provided. The extraction container is formed in a cylindrical shape having an upper surface opened and extending in the vertical direction, and is arranged so that the washing water supplied from above hits the upper part of the inner surface of the extraction container,
The inner surface of the extraction container is provided with a convex portion at the center in the vertical direction that extends over the entire circumferential direction and protrudes inwardly in a tapered shape. The beverage extraction apparatus according to any one of the above. The extraction container is formed in a cylindrical shape having an upper surface opened and extending in the vertical direction, and is arranged so that the washing water supplied from above and the water hit the upper part of the inner surface of the extraction container,
6. A convex portion that extends over the entire circumferential direction and projects inwardly in a taper shape is provided on an upper portion of the inner surface of the extraction container. Beverage extraction device. The extraction container is arranged so that the raw material supplied from above is guided near the inner surface of the extraction container,
The inner surface of the extraction container has a predetermined length projecting inward at substantially the same height as the convex portion, and a contact portion with water from which the cleaning water and the water hit from above, and per raw material with which the raw material hits from above Part is provided,
The water contact portion is configured such that the upper surface is located above the upper surface of the convex portion,
The beverage extraction device according to claim 7, wherein the ingredient hitting part is configured such that an upper surface thereof is located below a top surface of the convex part.   The beverage extraction device according to claim 8, wherein upper surfaces of the water contact portion and the raw material contact portion are inclined forward and downward toward the inside of the extraction container, respectively.

Images