Beverage extraction device, abnormality detection method, and abnormality detection system

Abstract

To provide a beverage extraction device capable of providing beverages appropriately.SOLUTION: A beverage extraction device for extracting a beverage in an extraction chamber includes: a tubular cylinder; a filter feeding part for feeding a belt-like filter so that an unused region of the belt-like filter for filtrating the beverage is positioned below the cylinder; a filter block configured to be moved relatively with respect to the cylinder, which forms the extraction chamber by closing an opening at a lower end of the cylinder with the belt-like filter between the filter block and the lower end; a discharge part provided in the filter block for discharging the beverage extracted in the extraction chamber; and an abnormality detection part for detecting whether or not a residue of a raw material used for extracting the beverage is transported accompanying a feeding operation of the belt-like filter by the filter feeding part.SELECTED DRAWING: Figure 13

Description

[Technical Field]

[0001] The present disclosure relates to a beverage brewing machine, an abnormality detection method, and an abnormality detection system. [Background technology]

[0002] Conventionally, beverage extraction devices that extract beverages such as coffee through a strip-shaped paper filter are known (see, for example, Patent Document 1). In the beverage extraction device disclosed in Patent Document 1, when extracting a beverage, first, the paper filter is sandwiched between the filter block and the filter block is raised and pressed against the lower end of a cylinder. Next, powdered ingredients are placed inside the cylinder, the bottom of which is sealed with the paper filter, and hot water is then supplied in multiple batches. Simultaneously with the supply of hot water, a tube pump is operated to pour the extract filtered through the paper filter into a paper cup.

[0003] When the extraction of the extract is complete, the filter block is lowered to separate the paper filter from the lower end of the cylinder, and the raw material residue adhering to the inner wall surface of the cylinder is scraped off onto the paper filter with a scraper.The paper filter wound around the supply roller is then taken up by a take-up roller, causing the paper filter to travel and collect the raw material residue on the paper filter in a raw material residue receiver. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2006-244448 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the beverage extraction device of Patent Document 1, if a problem occurs in the transport of the paper filter, the raw material residue cannot be moved from below the cylinder, and there is a risk that the next beverage will be extracted with the raw material residue remaining in the cylinder.

[0006] The present disclosure is devised to solve the above-mentioned problems, and aims to provide a beverage extraction device, an abnormality detection method, and an abnormality detection system that can properly serve beverages. [Means for solving the problem]

[0007] The beverage extraction device disclosed herein is a beverage extraction device that extracts a beverage in an extraction chamber, and includes a cylindrical cylinder, a filter feed unit that feeds the strip filter that filters the beverage so that an unused area of ​​the strip filter is located below the cylinder, a filter block that is configured to be movable relative to the cylinder and forms the extraction chamber by sandwiching the strip filter between them and blocking the opening at the lower end of the cylinder, a discharge unit that is provided in the filter block and discharges the beverage extracted in the extraction chamber, and an abnormality detection unit that detects whether residues of ingredients used to extract the beverage have not been transported as the filter feed unit feeds the strip filter.

[0008] The abnormality detection method disclosed herein is an abnormality detection method for a beverage extraction device that extracts a beverage in an extraction chamber, the beverage extraction device comprising: a cylindrical cylinder; a filter feed unit that feeds the strip filter that filters the beverage so that an unused area of ​​the strip filter is located below the cylinder; a filter block that is configured to be movable relative to the cylinder and forms the extraction chamber by sandwiching the strip filter between them and blocking an opening at the lower end of the cylinder; and a discharge unit that is provided on the filter block and discharges the beverage extracted in the extraction chamber, and the abnormality detection method detects whether or not residue of ingredients used to extract the beverage has not been transported due to the filter feed unit's feeding action of the strip filter after the filter block has moved away from the cylinder during a discharge process that discharges the beverage from the discharge unit.

[0009] The abnormality detection system of the present disclosure comprises a cylindrical cylinder, a filter block configured to be movable relative to the cylinder and forming an extraction chamber by sandwiching a strip filter that filters the beverage between them and blocking the opening at the lower end of the cylinder, an extraction unit provided in the filter block and including a discharge unit that discharges the beverage extracted in the extraction chamber and a drop assist unit that causes residue of ingredients used to extract the beverage to fall from the strip filter, a filter feed unit that feeds the strip filter so that an unused area of ​​the strip filter is positioned below the cylinder, an abnormality detection unit that includes an emitter that emits detection light so that it is blocked by the falling residue and a light receiver that receives the detection light, a determination unit that determines whether the detection light is blocked by the residue, and a notification unit that, when the determination unit determines that the detection light is blocked, notifies that the residue has been transported in conjunction with the filter feed unit's feeding operation of the strip filter. [Effects of the Invention]

[0010] According to the beverage extraction device, abnormality detection method, and abnormality detection system of the present disclosure, beverages can be provided appropriately. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a front view showing an internal configuration of a beverage extraction device according to an embodiment; [Figure 2] 1 is a perspective view of an extraction unit and a filter supply unit according to an embodiment; [Figure 3] Schematic diagram showing a schematic configuration of an extraction unit according to an embodiment. [Figure 4] 1 is a perspective view of a filter feeding section according to an embodiment; [Figure 5] 1 is a front view of an extraction unit and a filter supply unit according to an embodiment; [Figure 6] 1 is a perspective view of an extraction unit and a filter supply unit according to an embodiment, viewed from the right side; [Figure 7A] FIG. 1 is a perspective view showing a state in which a filter block according to an embodiment is located at an extraction position. [Figure 7B]FIG. 10 is a perspective view showing a state in which the filter block has moved to a standby position after serving the coffee beverage according to the embodiment; [Figure 7C] FIG. 1 is a perspective view showing a state in which raw material residue is discarded according to an embodiment; [Figure 8] FIG. 1 is a perspective view showing the arrangement position of an abnormality detection unit according to an embodiment; [Figure 9A] FIG. 10 is a schematic diagram illustrating the positional relationship between the detection light and the outlet pipe when the filter block according to the embodiment is located at the standby position and the outlet pipe is not removed from the block-side connecting pipe and the pump-side connecting pipe. [Figure 9B] FIG. 10 is a schematic diagram illustrating the positional relationship between the detection light and the outlet pipe when the filter block according to the embodiment is located at the extraction position and the outlet pipe is not removed from the block-side connecting pipe and the pump-side connecting pipe. [Figure 9C] FIG. 10 is a schematic diagram illustrating the positional relationship between the detection light and the outlet pipe when the filter block according to the embodiment is located at the standby position, and the outlet pipe is not disconnected from the block-side connecting pipe but is disconnected from the pump-side connecting pipe. [Figure 9D] FIG. 10 is a schematic diagram illustrating the positional relationship between the detection light and the outlet pipe when the filter block according to the embodiment is located at the extraction position, and the outlet pipe is not disconnected from the block-side connecting pipe but is disconnected from the pump-side connecting pipe. [Figure 9E] FIG. 10 is a schematic diagram illustrating the positional relationship between the detection light and the outlet pipe when the filter block according to the embodiment is located at the standby position, and the outlet pipe is disconnected from the block-side connecting pipe but not disconnected from the pump-side connecting pipe; [Figure 9F] FIG. 10 is a schematic diagram illustrating the positional relationship between the detection light and the outlet pipe when the filter block according to the embodiment is located at the extraction position, and the outlet pipe is disconnected from the block-side connecting pipe but not disconnected from the pump-side connecting pipe; [Figure 10A] FIG. 10 is a schematic diagram illustrating the positional relationship between raw material residues adhering to a used area of ​​a strip filter and detection light when the filter block according to the embodiment is located at a standby position and the used area of ​​the strip filter is not bent. [Figure 10B]FIG. 10 is a schematic diagram illustrating the positional relationship between raw material residues adhering to a used area of ​​a strip filter and detection light when the filter block according to the embodiment is positioned at a standby position and the used area of ​​the strip filter is bent. [Figure 10C] FIG. 10 is a schematic diagram illustrating the positional relationship between the detection light and raw material residue adhering to the used area of ​​the strip filter when the filter block according to the embodiment is located at the extraction position and the used area of ​​the strip filter is not bent. [Figure 11] FIG. 1 is a block diagram showing a control system of a beverage extraction device according to an embodiment; [Figure 12] Schematic diagram showing a beverage serving process according to an embodiment. [Figure 13] Flowchart showing a beverage serving process according to an embodiment [Figure 14A] FIG. 10 is a block diagram showing the configuration of an anomaly detection system according to a modified example. [Figure 14B] FIG. 10 is a block diagram showing the configuration of an anomaly detection system according to a modified example. [Figure 15A] FIG. 10 is a schematic diagram showing a position where it is detected that the raw material residue has not been conveyed according to a modified example. [Figure 15B] FIG. 10 is a schematic diagram showing a position where it is detected that the raw material residue has not been conveyed according to a modified example. [Figure 15C] FIG. 10 is a schematic diagram showing a position where it is detected that the raw material residue has not been conveyed according to a modified example. [Figure 15D] FIG. 10 is a schematic diagram showing a position where it is detected that the raw material residue has not been conveyed according to a modified example. [Figure 15E] FIG. 10 is a schematic diagram showing a position where it is detected that the raw material residue has not been conveyed according to a modified example. [Figure 16] FIG. 10 is a schematic diagram showing the positional relationship between the raw material residue and a detection light for detecting that the raw material residue has not been conveyed according to a modified example. DETAILED DESCRIPTION OF THE INVENTION

[0012] [Embodiment] An embodiment of the present disclosure will be described.

[0013] <Configuration of beverage extraction device> First, the overall configuration of the beverage extraction device will be described. Fig. 1 is a front view showing the internal configuration of the beverage extraction device. Note that the front side is the side that a user of the beverage extraction device faces, and the rear side is the opposite side of the front. Furthermore, the right side is the right side as seen from the user, and the left side is the opposite side of the right side. The upper side is the upper side as seen from the user, and the lower side is the opposite side of the upper side.

[0014] The beverage brewing device 1 shown in FIG. 1 provides a coffee beverage C (see FIG. 12) brewed using hot water W (see FIG. 12) and coffee bean powder F (see FIG. 12). The coffee bean powder F is an example of an ingredient of the present disclosure. The coffee beverage C is an example of a beverage of the present disclosure. Note that the coffee beverage C may also be brewed using water instead of the hot water W. The beverage brewing device 1 includes a main body 10.

[0015] The main body 10 is formed in the shape of a rectangular box with an open front. A front portion (not shown) is attached to the left edge of the main body 10, for example, so as to be able to be opened and closed. The front portion is provided with an operation unit 71 (see FIG. 11) used to operate the beverage extraction device 1, and an alarm unit 72 (see FIG. 11) that notifies various pieces of information using displays or sounds. Inside the main body 10, two canisters 11, a mill 12, an internal housing 13, an extraction unit 2, a filter supply unit 4, and a waste storage unit 14 are arranged.

[0016] The two canisters 11 store different types of coffee beans. However, the two canisters 11 may store the same type of coffee beans. The mill 12 is an example of a raw material supply unit of the present disclosure. The mill 12 receives and grinds the type of coffee beans selected by the user through operation of the operation unit 71. The coffee bean powder F obtained by driving the mill 12 is supplied to the extraction unit 2. The internal housing 13 is arranged in the center of the main body 10. The extraction unit 2 and the filter supply unit 4 are fixed to the internal housing 13.

[0017] The extraction unit 2 extracts a coffee beverage C using hot water W and coffee bean powder F. The extraction unit 2 includes a cylinder 21 and a filter block 22.

[0018] The cylinder 21 is made of, for example, plastic and has a cylindrical shape. The cylinder 21 is supported by a pair of support arms 131 that protrude forward from the inner housing 13 so that its axial direction is parallel to the vertical direction and its lower end surface is approximately parallel to the horizontal plane.

[0019] The filter block 22 is formed, for example, from plastic, in the shape of a rectangular block. The filter block 22 is arranged below the cylinder 21 so as to be movable up and down. The filter block 22 reciprocates between a standby position spaced downward from the cylinder 21 as shown in FIG. 1 and an extraction position (see, for example, FIG. 6) where the filter block 22 is pressed against the lower end of the cylinder 21 with a strip-shaped filter 40 sandwiched between them. Coffee beverage C filtered by the strip filter 40 is extracted in the extraction chamber 20 (see, for example, FIG. 3) formed by the filter block 22 located at the extraction position and the cylinder 21. The filter block 22 is provided with a discharge portion 221. The discharge portion 221 includes a funnel portion 221A and a block-side connecting pipe 221B. The funnel portion 221A is formed so as to pass through the filter block 22 in the vertical direction. The block-side connecting pipe 221B is provided on the lower surface of the filter block 22 and is configured to guide the coffee beverage C in the funnel portion 221A to the outside. The block-side connecting pipe 221B is inserted into (connected to) one end of the flexible outlet pipe 23. The other end of the outlet pipe 23 is connected (inserted) to the pump-side connecting pipe 132 provided on the front surface of the inner casing 13. The pump-side connecting pipe 132 is an example of an outlet-side connecting pipe of the present disclosure. The extracted coffee beverage C is discharged from the extraction chamber 20 via the discharge portion 221 and the outlet pipe 23.

[0020] The filter supply unit 4 supplies the strip-shaped filter 40 between the cylinder 21 and the filter block 22. The filter supply unit 4 includes a filter accommodating unit 41 and a filter feeding unit .

[0021] The filter accommodating section 41 is disposed on the left side of the cylinder 21. The filter accommodating section 41 is formed in a box shape with openings on the front and bottom. The filter accommodating section 41 accommodates the strip filter 40. A roll support shaft 411 extending forward is provided on the rear wall constituting the filter accommodating section 41. The roll support shaft 411 rotatably supports the roll 40A of the strip filter 40. The roll 40A has a configuration in which the strip filter 40 is wound around a cylindrical core material 40B. One end of the strip filter 40 is adhered (fixed) to the core material 40B with a predetermined adhesive force (fixing force). The roll support shaft 411 is inserted into the internal space of the core material 40B to rotatably support the roll 40A. The core material 40B and the roll support shaft 411 constitute a filter holding section of the present disclosure.

[0022] The filter feeding unit 42 is disposed in a region on the left side below the filter block 22. The filter feeding unit 42 feeds downward the strip filter 40, which is pulled out to the right from the filter housing unit 41 and folded back to the left at the right end of the filter block 22. As the strip filter 40 is fed, residue K of the coffee bean powder F (hereinafter, sometimes referred to as "raw material residue K") adhering to the strip filter 40 falls off the folded-back portion of the strip filter 40 (see, for example, FIG. 7B).

[0023] The waste storage unit 14 is disposed below the filter feeding unit 42. The waste storage unit 14 is formed in a box shape with an open top. The waste storage unit 14 stores the portion of the strip filter 40 that has been used to extract the coffee beverage C. The waste storage unit 14 stores raw material residue K that has fallen from the strip filter 40.

[0024] Next, we will explain the detailed configuration of the extraction unit 2. Figure 2 is a perspective view of the extraction unit and the filter supply unit.

[0025] As shown in Figure 2, a drop assisting section 222 extending in the front-rear direction is provided on the right side surface of the filter block 22 of the extraction unit 2. A disk-shaped mesh member 223 is arranged on the upper surface of the filter block 22. The mesh member 223 is arranged so as to close the upper opening of the funnel section 221A. The mesh member 223 has the function of guiding the coffee beverage C filtered by the strip filter 40 to the discharge section 221. An annular gasket 224 is arranged on the upper surface of the filter block 22. The gasket 224 is made of rubber and is arranged so as to surround the mesh member 223 and to be pressed against the lower end of the cylinder 21 with the strip filter 40 sandwiched between them.

[0026] Walls 225 extending upward are provided on the left, front, and rear side edges of the top surface of the filter block 22. With the wall 225 configured in this way, if coffee beverage C remains in the extraction chamber 20 after the coffee beverage C has been served due to a setting error or an abnormality, the wall 225 can guide the coffee beverage C in the extraction chamber 20 to the right when the filter block 22 descends.

[0027] A rear portion of the filter block 22 is supported by a lifting member (not shown) that is configured to be able to move up and down within the internal housing 13. That is, the filter block 22 is supported by the lifting member in a cantilevered state. The lifting member is raised and lowered by driving a lifting mechanism 73 (see FIG. 11 ). The filter block 22 is supported so that the front end (first direction side) of its upper surface is positioned higher than the rear end (second direction side). Because the filter block 22 is supported obliquely in a cantilevered state in this manner, when the filter block 22 rises, first, the front portion of the packing 224, which is the free end side, is pressed against the cylinder 21, and finally, the rear portion (fixed end side) is pressed against the cylinder 21. Therefore, the entire packing 224 can be brought into tight contact with the cylinder 21, and leakage of the coffee beverage C from the extraction chamber 20 can be prevented.

[0028] The extraction unit 2 further includes a cover 24 and a pump 25 .

[0029] The cover 24 is fixed to the front of the inner housing 13 so as to cover the upper opening of the cylinder 21. The cover 24 is equipped with an ingredient input section 241, a hot water input section 242, and a steaming section 243. The ingredient input section 241 is formed in a cylindrical shape so that coffee bean powder F from the mill 12 can be input into the extraction chamber 20. The hot water input section 242 is formed in a cylindrical shape so that hot water W from the hot water supply section 74 (see FIG. 11) can be input into the extraction chamber 20. The steaming section 243 is formed in a cylindrical shape so that steam within the extraction chamber 20 can be drawn to the outside of the extraction chamber 20. One end of an upper pipe 244 is fixed to the cover 24. The upper pipe 244 is fixed so that the fluid within the upper pipe 244 can be guided into the extraction chamber 20.

[0030] The pump 25 is fixed to the right side surface of the inner casing 13. One end of a serving pipe 251 is connected to the pump 25. The serving pipe 251 supplies the coffee beverage C extracted in the extraction chamber 20 to a container such as a cup directly or via another pipe. One end of a relay pipe 252 is connected to the pump 25. The other end of the relay pipe 252 is connected to a pump-side connecting pipe 132 provided in the inner casing 13, and is configured to be able to guide the coffee beverage C in the extraction chamber 20 to the pump 25. In other words, the serving pipe 251 is indirectly connected to the other end of the outlet pipe 23 via the pump 25, the relay pipe 252, and the pump-side connecting pipe 132. The other end of the outlet pipe 23 may be connected directly to the pump 25 without going through the pump-side connecting pipe 132 and the relay pipe 252.

[0031] Next, a description will be given of other configurations of the extraction unit 2. Fig. 3 is a schematic diagram showing a general configuration of the extraction unit.

[0032] 3, the extraction unit 2 further includes a shutter 26 and a cylinder vibration unit 27. The shutter 26 is configured to be movable between a feed-permitted position, as shown by a solid line, which opens the lower end face of the raw material input unit 241, and a feed-prohibited position, as shown by a two-dot line, which blocks the lower end face of the raw material input unit 241. The cylinder vibration unit 27 is configured to be rotatable between a non-vibration position, as shown by a solid line, in which the lower end 271 is separated from the side face of the cylinder 21, and a vibration position, as shown by a two-dot line, in which the lower end 271 contacts the side face of the cylinder 21.

[0033] An upper pipe 244 is connected to a midpoint of the serving pipe 251. A waste liquid pipe 28 is connected to a midpoint of the relay pipe 252. The waste liquid pipe 28 guides the coffee beverage C to be discarded to the waste storage section 14. The extraction chamber 20, which is formed by the cylinder 21 and the filter block 22, the outlet pipe 23, the relay pipe 252, the pump 25, the portion of the serving pipe 251 on the pump 25 side, and the upper pipe 244 form a first flow path R1 that circulates the coffee beverage C extracted in the extraction chamber 20. The upper pipe 244, the portion of the serving pipe 251 on the pump 25 side, the pump 25, the relay pipe 252, and the outlet pipe 23 form a second flow path R2 that introduces air A (see FIG. 12 ) introduced from the upper pipe 244 into the extraction chamber 20. The second flow path R2 may be configured to introduce the air introduced from the other end (supply port to the container) of the supply pipe 251 into the extraction chamber 20.

[0034] The extraction unit 2 further includes a first adjustment unit 29, a second adjustment unit 30, and a third adjustment unit 31. The first adjustment unit 29 is configured to be able to open and close the upper pipe 244. The second adjustment unit 30 is configured to be able to open and close a portion of the supply pipe 251 downstream of the connection portion with the upper pipe 244. The third adjustment unit 31 is configured to be able to open and close the waste liquid pipe 28. The first, second, and third adjustment units 29, 30, and 31 are configured to be switchable between a closed state in which a predetermined portion of each pipe 244, 251, and 28 is closed to prevent the flow of fluid or gas, and an open state in which the predetermined portion is opened to allow the flow of fluid or gas. A pinch mechanism or a solenoid valve can be applied as the first, second, and third adjustment units 29, 30, and 31.

[0035] The states of the first, second, and third adjustment units 29, 30, and 31 are switched in conjunction with the elevation of the filter block 22 through cooperation between the switching mechanisms of the first, second, and third adjustment units 29, 30, and 31 and the elevation mechanism 73 of the filter block 22. The states of the first, second, and third adjustment units 29, 30, and 31 and the filter block 22 are switched to a standby mode, a stirring mode, or a beverage serving mode, as described below. Standby mode Filter block 22: standby position First adjustment unit 29: open state Second adjustment unit 30: open state Third adjustment unit 31: open state Stirring mode Filter Block 22: Extraction Position First adjustment unit 29: open state Second adjustment unit 30: closed state Third adjustment unit 31: Closed state Beverage serving mode Filter Block 22: Extraction Position First adjustment unit 29: closed state Second adjustment unit 30: open state Third adjustment unit 31: Closed state

[0036] The standby mode is a mode in which the beverage brewing device 1 waits for extraction of the coffee beverage C. The stirring mode is a mode in which the coffee beverage C is stirred. The beverage serving mode is a mode in which the coffee beverage C is served. The operation of the beverage brewing device 1 in each mode will be described later.

[0037] Next, a detailed description will be given of the configuration of the filter feeding section 42 that constitutes the filter supply section 4. Fig. 4 is a perspective view of the filter feeding section.

[0038] As shown in FIG. 4, the filter feeding unit 42 includes a feeding mechanism 43, a feeding motor 44, and a feeding detection unit 45.

[0039] The feed mechanism 43 includes a support body 431. The support body 431 is made up of a pair of support plates 431A facing each other, and a connection plate 431B connecting one end of the pair of support plates 431A to each other.

[0040] A drum rotation shaft 432 is inserted through the center of the pair of support plates 431A. A drum 433 is fixed to a portion of the drum rotation shaft 432 near each support plate 431A. The drum 433 is an example of one of the pair of rotating bodies of the present disclosure. A rubber roller rotation shaft 434 is inserted through the other end of the pair of support plates 431A. The rubber roller rotation shaft 434 is inserted so as to be able to move toward and away from the drum rotation shaft 432. A rubber roller 435 is fixed to a portion of the rubber roller rotation shaft 434 near each support plate 431A. The rubber roller 435 is an example of the other of the pair of rotating bodies of the present disclosure. Each rubber roller 435 is fixed so that its outer circumferential surface faces the outer circumferential surface of the corresponding drum 433. The strip-shaped filter 40 is sandwiched between each drum 433 and each rubber roller 435.

[0041] A pair of springs 436 are stretched across the drum rotation shaft 432 and the rubber roller rotation shaft 434. The springs 436 bias the rubber roller rotation shaft 434 in a direction that brings it closer to the drum rotation shaft 432, thereby generating a frictional force between the drum 433 and rubber roller 435 and the strip filter 40. The biasing force of the pair of springs 436 is set so that the frictional force generated between the drum 433 and rubber roller 435 and the strip filter 40 is smaller than the adhesive force between the strip filter 40 and the core material 40B.

[0042] The rotary shaft of the feed motor 44 is connected to the drum rotary shaft 432 via a joint 441. The portion of the joint 441 on the support 431 side forms a small diameter portion 441A having a smaller diameter than the central portion.

[0043] The feed detection unit 45 detects the feed state of the strip filter 40 in the feed mechanism 43. The feed detection unit 45 includes a feed detection switch 451 and a switch cam 452. The feed detection switch 451 is disposed near the joint 441. The switch cam 452 is provided so as to protrude from a portion of the outer circumferential surface of the small diameter portion 441A of the joint 441. The switch cam 452 is configured to press the feed detection switch 451 each time the drum rotation shaft 432 rotates once. When the feed detection switch 451 is pressed by the switch cam 452 while the feed motor 44 is driving, the feed motor 44 stops.

[0044] Next, the setting state of the strip filter 40 in the filter supply unit 4 and the feeding operation of the strip filter 40 will be described. Fig. 5 is a front view of the extraction unit and the filter supply unit. Fig. 6 is a perspective view from the right side of the extraction unit and the filter supply unit. Fig. 7A is a perspective view showing the filter block in the extraction position. Fig. 7B is a perspective view showing the filter block moved to the standby position after the coffee beverage has been served. Fig. 7C is a perspective view showing the state in which the raw material residue is discarded.

[0045] 5, when the filter block 22 is in the standby position, the strip filter 40 pulled out from the roll 40A passes between the cylinder 21 and the filter block 22 toward the right, and then is folded back diagonally downward to the left in the drop assisting section 222. The strip filter 40 may also be bent vertically downward in the drop assisting section 222. In this case, the portion of the strip filter 40 located between the cylinder 21 and the filter block 22 contacts the lower end of the right wall constituting the filter accommodating section 41 and the upper edge of the right side of the filter block 22, and is inclined so that the right side is located lower than the left side. The strip filter 40 is then inserted from top to bottom between the drums 433 and the rubber rollers 435 of the feed mechanism 43.

[0046] 6 and 7A, when the filter block 22 moves from the standby position to the extraction position, the packing 224 arranged on the upper surface of the filter block 22 is pressed against the lower end of the cylinder 21, forming the extraction chamber 20. After the coffee beverage C is provided, as shown in FIG. 7B, when the filter block 22 moves from the extraction position to the standby position, the raw material residue K that has accumulated in a cylindrical shape on the strip filter 40 is exposed.

[0047] Thereafter, when the feed motor 44 is driven to rotate the drum rotation shaft 432 of the feed mechanism 43, the frictional forces between the rubber rollers 435 and the drums 433 and the strip filter 40 feed the strip filter 40 downward. As the strip filter 40 is fed downward, as shown in FIG. 7C , the portion of the strip filter 40 below the feed mechanism 43 is discarded in the left region of the waste storage unit 14. Furthermore, the raw material residue K on the strip filter 40 falls from the folded-back position of the strip filter 40 to the right region of the waste storage unit 14. Note that some of the raw material residue K may remain attached to the strip filter 40. While the drop assisting portion 222 has been exemplified as a configuration in which the strip filter 40 is folded back to cause the raw material residue K to fall, a rib or the like that contacts the raw material residue K to cause the raw material residue K to fall may also be used as the drop assisting portion.

[0048] Next, a description will be given of other configurations of the beverage extraction machine 1. Fig. 8 is a perspective view showing the arrangement position of the abnormality detection unit.

[0049] 8, the beverage brewing machine 1 further includes an abnormality detection unit 5. The abnormality detection unit 5 detects the following four abnormalities as abnormalities in the beverage brewing machine 1. The outlet pipe 23 is disconnected from the block side connecting pipe 221B or the pump side connecting pipe 132 (the first connection state between the outlet pipe 23 and the discharge part 221 or the second connection state between the outlet pipe 23 and the pump side connecting pipe 132 is released). The raw material residue K could not be transported due to the feeding operation of the strip filter 40. The coffee beverage C leaks from the extraction chamber 20 while the coffee beverage C is being stirred (extracted) or served. After the coffee drink C was served, the coffee drink C remained in the brewing chamber 20.

[0050] The abnormality detection unit 5 includes a light-emitting unit 51 and a light-receiving unit 52. The light-emitting unit 51 is located to the right of a portion of the strip filter 40 that is located between the filter block 22 and the filter feeding unit 42. The light-emitting unit 51 emits detection light L (see, for example, FIG. 9A ) that passes through the strip filter 40. The light-receiving unit 52 faces the light-emitting unit 51 across the strip filter 40 and is located in a position where it can receive the detection light L. When the light-receiving unit 52 receives the detection light L, it outputs a light-receiving signal, but when it does not receive the detection light L, it does not output a light-receiving signal. An abnormality in the beverage extraction device 1 is detected based on the state of reception of the detection light L by the light-receiving unit 52.

[0051] Next, a detailed description will be given of the placement position of the abnormality detection unit 5. The abnormality detection unit 5 is placed so as to satisfy the conditions shown in Figures 9A to 9F and 10A to 10C.

[0052] 9A and 9B show the positional relationship between the lead-out pipe 23 and the detection light L when the lead-out pipe 23 is not removed from the block-side connecting pipe 221B and the pump-side connecting pipe 132. As shown in FIGS. 9A and 9B, the detection light L passes through a position rearward of the center in the front-to-rear direction of the strip filter 40, that is, a position rearward (second direction side) of the center in the area vertically below the filter block 22. Also, as shown in FIG. 9A, when the filter block 22 is located in the standby position, the detection light L is not blocked by the lead-out pipe 23. On the other hand, as shown in FIG. 9B, when the filter block 22 is located in the extraction position, the detection light L is blocked by the lead-out pipe 23.

[0053] 9A , the filter block 22 is supported so that the front end of its upper surface is positioned higher than the rear end. Therefore, when the filter block 22 is separated from the cylinder 21, the portion of the strip filter 40 above the filter block 22 is tilted along the right upper edge of the filter block 22 so that the front end is positioned higher than the rear end. In other words, the right upper edge of the filter block 22 functions as the tilt assisting portion of the present disclosure. Therefore, if coffee beverage C remains in the extraction chamber 20 after serving, the coffee beverage C in the extraction chamber 20 will drip down from a relatively rearward portion of the folded portion of the strip filter 40, as indicated by the two-dot chain line in FIG. 9A . In this case, the detection light L is blocked by the dripping coffee beverage C. Furthermore, as indicated by the dashed line in FIG. 9A , the detection light L is temporarily blocked by the raw material residue K that falls from the strip filter 40. Here, the part of the raw material residue K that is falling and has the longest vertical length is the part T at the center of the front-to-back direction of the raw material residue K, indicated by the dashed line. In this embodiment, the detection light L is emitted so as to be blocked by a part behind the part T at the center of the front-to-back direction of the raw material residue K that is falling, i.e., a part of the raw material residue K that is not the longest vertical length.

[0054] 9C and 9D show the positional relationship between the outlet pipe 23 and the detection light L when the outlet pipe 23 is not removed from the block-side connecting pipe 221B but is removed from the pump-side connecting pipe 132. In both the case where the filter block 22 is located at the standby position shown in FIG. 9C and the case where the filter block 22 is located at the extraction position shown in FIG. 9D, the detection light L is not blocked by the outlet pipe 23.

[0055] 9E and 9F show the positional relationship between the outlet pipe 23 and the detection light L when the outlet pipe 23 is disconnected from the block-side connecting pipe 221B but is not disconnected from the pump-side connecting pipe 132. In both the case where the filter block 22 is located at the standby position shown in FIG. 9E and the case where the filter block 22 is located at the extraction position shown in FIG. 9F, the detection light L is not blocked by the outlet pipe 23.

[0056] Although not shown, when the discharge pipe 23 is disconnected from both the block side connecting pipe 221B and the pump side connecting pipe 132, when the filter block 22 is positioned in the standby position, and when the filter block 22 is positioned in the extraction position, the detection light L is not blocked by the discharge pipe 23.

[0057] 10A shows the positional relationship between raw material residue K adhering to used region 401 and detection light L when filter block 22 is in the standby position and region 401 of strip filter 40 located between filter block 22 and feed mechanism 43 (hereinafter sometimes referred to as "used region 401") is not bent. In this case, detection light L is not blocked by raw material residue K and passes through the lower side of used region 401.

[0058] 10B shows the positional relationship between the raw material residue K adhering to the used area 401 and the detection light L when the filter block 22 is in the standby position and the used area 401 is bent. If the raw material residue K contains a large amount of moisture, the raw material residue K may not fall off the strip filter 40, and the used area 401 may bend due to the weight of the raw material residue K. In this case, the position of the raw material residue K is lowered due to the bending of the used area 401, and the detection light L is blocked by the raw material residue K adhering to the used area 401.

[0059] 10C shows the positional relationship between raw material residue K adhering to used region 401 and detection light L when filter block 22 is located at the extraction position and used region 401 is not bent. When filter block 22 moves from the standby position to the extraction position, the portion of strip filter 40 located above filter block 22 is lifted, so used region 401 becomes unbent regardless of whether used region 401 was bent when it was located at the standby position. In this case, detection light L is not blocked by raw material residue K and passes through the underside of used region 401.

[0060] That is, when the filter block 22 is positioned at the standby position, the light receiving unit 52 receives the detection light L and outputs a light receiving signal if the used region 401 is not bent, regardless of whether the outlet pipe 23 is disconnected from the block side connecting pipe 221B or the pump side connecting pipe 132, but does not output a light receiving signal if the used region 401 is bent. Also, when the filter block 22 is positioned at the extraction position, the light receiving unit 52 outputs a light receiving signal if the outlet pipe 23 is disconnected from the block side connecting pipe 221B or the pump side connecting pipe 132, regardless of whether the used region 401 is bent when the filter block 22 is positioned at the standby position, but does not output a light receiving signal if the outlet pipe 23 is not disconnected from the block side connecting pipe 221B or the pump side connecting pipe 132.

[0061] Next, we will explain the control system of the beverage brewing machine 1. Figure 11 is a block diagram showing the control system of the beverage brewing machine.

[0062] As shown in FIG. 11 , the beverage extraction device 1 further includes a control unit 6. The control unit 6 has a CPU (Central Processing Unit), and the functions of the control unit 6 are realized by the CPU executing a control program stored in a storage unit (not shown). The control unit 6 is configured to be able to transmit and receive various signals between the operation unit 71, the notification unit 72, the lifting mechanism 73, the hot water supply unit 74, the mill 12, the pump 25, the shutter 26, the cylinder vibration unit 27, the first, second, and third adjustment units 29, 30, and 31, the feed motor 44, the feed detection switch 451, and the abnormality detection unit 5. The control unit 6 includes a reception unit 61, a supply control unit 62, a determination unit 63, and a notification control unit 64.

[0063] The reception unit 61 receives a request to provide a predetermined coffee beverage C based on a user's operation of the operation unit 71. The provision control unit 62 controls the extraction unit 2, the filter supply unit 4, and the abnormality detection unit 5 to provide the coffee beverage C to the user. The determination unit 63 determines whether or not an abnormality has occurred based on the detection result of the abnormality detection unit 5. The notification control unit 64 causes the notification unit 72 to notify the user of an abnormality in the beverage extraction device 1.

[0064] <Beverage Extraction Device Operation> Next, a beverage providing process will be described as an operation of the beverage extractor 1. Fig. 12 is a schematic diagram showing the beverage providing process, and Fig. 13 is a flowchart showing the beverage providing process.

[0065] As shown in the upper left diagram of FIG. 12, when waiting to accept a dispense request for coffee beverage C, dispense control unit 62 of control unit 6 sets filter block 22 and first to third adjustment units 29 to 31 to a standby mode and positions shutter 26 at the dispense enable position. Furthermore, dispense control unit 62 causes light emitter 51 of abnormality detection unit 5 to emit detection light L. As described above, light receiver 52 outputs a light-receiving signal to control unit 6 when used region 401 is not bent, regardless of whether outlet pipe 23 is disconnected from block-side connecting pipe 221B or pump-side connecting pipe 132. However, light receiver 52 does not output a light-receiving signal to control unit 6 when used region 401 is bent. Furthermore, feed detection switch 451 is pressed by switch cam 452.

[0066] As shown in Fig. 13, when the reception unit 61 of the control unit 6 receives a request to serve coffee beverage C during reception standby (step S1), the serving control unit 62 controls the lifting mechanism 73 to raise the filter block 22 and move it from the standby position to the extraction position (step S2). In the processing of step S2, the serving control unit 62 changes the mode of the filter block 22 and the first to third adjustment units 29 to 31 from the standby mode to the stirring mode. With this mode change, the filter block 22 rises and the extraction chamber 20 is formed, as shown in the upper center diagram of Fig. 12. Furthermore, while the first adjustment unit 29 is maintained in the open state, the second and third adjustment units 30 and 31 change from the open state to the closed state.

[0067] 13 , the determination unit 63 of the control unit 6 determines whether the outlet pipe 23 is disconnected or not based on the reception state of the detection light L by the light receiving unit 52 of the abnormality detection unit 5 (step S3). As described above, when the used region 401 is not bent while the filter block 22 is located at the standby position, the light receiving unit 52 outputs a light receiving signal to the control unit 6 regardless of whether the outlet pipe 23 is disconnected or not from the block side connecting pipe 221B or the pump side connecting pipe 132. On the other hand, when the used region 401 is bent while the filter block 22 is located at the standby position, the light receiving unit 52 does not output a light receiving signal to the control unit 6 regardless of whether the outlet pipe 23 is disconnected or not from the block side connecting pipe 221B or the pump side connecting pipe 132. Furthermore, when the filter block 22 is positioned at the extraction position, if the outlet pipe 23 is disconnected from the block side connecting pipe 221B or the pump side connecting pipe 132, the light receiving unit 52 outputs a light receiving signal to the control unit 6. On the other hand, when the filter block 22 is positioned at the extraction position, if the outlet pipe 23 is not disconnected from the block side connecting pipe 221B or the pump side connecting pipe 132, the light receiving unit 52 does not output a light receiving signal to the control unit 6.

[0068] If the state of acquiring a light receiving signal continues before and after the filter block 22 is raised, or if the state transitions from not acquiring a light receiving signal to acquiring a light receiving signal, the determination unit 63 determines that the outlet pipe 23 has come loose from the block-side connecting pipe 221B or the pump-side connecting pipe 132. On the other hand, if the state of acquiring a light receiving signal transitions from not acquiring a light receiving signal before and after the filter block 22 is raised, the determination unit 63 determines that the outlet pipe 23 has come loose from the block-side connecting pipe 221B and the pump-side connecting pipe 132. Furthermore, if the state of not acquiring a light receiving signal continues before and after the filter block 22 is raised, there is a possibility that an abnormality has occurred in the abnormality detection unit 5, such as a malfunction of the light receiving unit 52. Therefore, the supply control unit 62 temporarily lowers the filter block 22 to the standby position and then raises it back to the extraction position. In addition, it is more preferable to transport the strip filter 40. If the judgment unit 63 continues to not acquire a light receiving signal before and after the second raising of the filter block 22, and also before and after the transport of the strip filter 40, it judges that the outlet pipe 23 has not come loose from the block side connecting pipe 221B and the pump side connecting pipe 132.

[0069] If the determination unit 63 determines that the outlet pipe 23 is disconnected from the block-side connecting pipe 221B or the pump-side connecting pipe 132 (step S3: YES), the serving control unit 62 stops the serving process of the coffee beverage C (step S4). The control unit 6 may return the filter block 22 to the standby position and then perform (retry) the processes of steps S2 and S3 again. The notification control unit 64 of the control unit 6 causes the notification unit 72 to notify that an abnormality has occurred in the beverage brewing device 1 (step S5). In this case, the notification control unit 64 causes the notification unit 72 to notify that the outlet pipe 23 is disconnected. The notification control unit 64 may also cause a notification unit included in an information processing device, such as a mobile terminal accessible to the administrator of the beverage brewing device 1, to notify of the occurrence of the abnormality, for example, using a wireless or wired medium. The reception unit 61 then stops accepting the request to serve the coffee beverage C (step S6) and ends the process. If the outlet pipe 23 is disconnected, the suspension of the acceptance of the request to serve the coffee drink C is released after the manager reconnects the outlet pipe 23.

[0070] On the other hand, if the determination unit 63 determines that the outlet pipe 23 is not disconnected (step S3: NO), the provision control unit 62 pours coffee bean powder F and hot water W into the extraction chamber 20 (step S7). As shown in the central diagram at the top of Figure 12, the provision control unit 62 controls the mill 12 to pour coffee bean powder F from the ingredient feeding unit 241 into the extraction chamber 20, and also controls the hot water supply unit 74 to pour hot water W from the hot water feeding unit 242 into the extraction chamber 20.

[0071] 13, the serving control unit 62 performs a stirring cooking process (step S8). As the stirring cooking process, the serving control unit 62 performs each of a circulation stirring process and an air stirring process at least once. Note that as the stirring cooking process of step S8, only the circulation stirring process or the air stirring process may be performed, or the stirring cooking process of step S8 (both the circulation stirring process and the air stirring process) may not be performed.

[0072] In the circulating stirring process, the providing control unit 62 moves the shutter 26 from the dispenser permitted position to the dispenser prohibited position, as shown in the upper right diagram of Fig. 12, and then drives the pump 25 to circulate the coffee beverage C through the first flow path R1 at least once. The circulating stirring process makes it possible to stir the coffee bean powder F and hot water within the extraction chamber 20, and promotes efficient stirring throughout the entire extraction chamber 20, even if the coffee bean powder F accumulates unevenly.

[0073] During the air stirring process, as shown in the right-hand diagram at the bottom of Fig. 12, the supply control unit 62 drives the pump 25 in the opposite direction to that of the circulation stirring process, and guides air A introduced from one end of the upper pipe 244 into the extraction chamber 20 via the second flow path R2. By performing the air stirring process after the circulation stirring process in this way, even if there is variation in the void space in the strip filter 40, the coffee beverage C passes through the strip filter 40 once during the circulation stirring process, so that the air A can be sprayed evenly into the extraction chamber 20. This reduces variation in the mixing of the coffee bean powder F and hot water W in the extraction chamber 20. Note that the circulation stirring process may be performed after the air stirring process.

[0074] As shown in Fig. 13, the serving control unit 62 serves coffee beverage C to a container (step S9). In the processing of step S9, the serving control unit 62 changes the mode of the filter block 22 and the first to third adjustment units 29-31 from the stirring mode to the beverage serving mode. In accordance with this mode change, as shown in the central diagram at the bottom of Fig. 12, while the filter block 22 is maintained in the extraction position and the third adjustment unit 31 is maintained in the closed state, the first adjustment unit 29 changes from the open state to the closed state and the second adjustment unit 30 changes from the closed state to the open state. The serving control unit 62 then drives the pump 25 for a preset drive time so that the coffee beverage C in the extraction chamber 20 is guided to a container via the outlet pipe 23, the relay pipe 252, and the serving pipe 251.

[0075] As shown in Fig. 13, the provision control unit 62 lowers the filter block 22, moving it from the extraction position to the standby position (step S10). In the processing of step S10, the provision control unit 62 changes the mode of the filter block 22 and the first to third adjustment units 29 to 31 from the beverage provision mode to the standby mode. With this mode change, as shown in the left diagram at the bottom of Fig. 12, the second adjustment unit 30 remains open, while the first and third adjustment units 29 and 31 change from the closed state to the open state. In addition, the raw material residue K accumulated on the strip filter 40 becomes exposed.

[0076] For example, if the sealing between the cylinder 21 and the filter block 22 is not performed properly due to damage or deterioration of the packing 224 or damage or deterioration of the lifting mechanism 73 for the filter block 22, that is, if there is a sealing defect in the extraction chamber 20, the coffee beverage C may leak from the extraction chamber 20 during the stirring and cooking process (extraction process) in step S8 or during the process of serving the coffee beverage C in step S9. In this case, the coffee beverage C that was leaking before the filter block 22 was lowered will run down the strip-shaped filter 40. Furthermore, for example, the coffee beverage C may remain in the extraction chamber 20 due to an insufficient operating time of the pump 25 when serving the coffee beverage C, or a malfunction of the pump 25. In this case, when the filter block 22 is lowered, the coffee beverage C will run down the strip-shaped filter 40.

[0077] 13, the determination unit 63 determines whether a sealing defect has occurred in the extraction chamber 20 or whether coffee beverage C remains in the extraction chamber 20, based on the state of reception of detection light L by the light receiving unit 52 of the abnormality detection unit 5 (step S11). When the filter block 22 is located at the extraction position, if the outlet pipe 23 is not removed from the block-side connecting pipe 221B and the pump-side connecting pipe 132, the detection light L is blocked by the outlet pipe 23. When the filter block 22 is located at the standby position, if the outlet pipe 23 is not removed from the block-side connecting pipe 221B and the pump-side connecting pipe 132 and the used region 401 is not bent, the detection light L is not blocked by the outlet pipe 23. On the other hand, when the filter block 22 is in the standby position, if the coffee beverage C is leaking from the extraction chamber 20 due to a poor seal in the extraction chamber 20, or if the coffee beverage C remains in the extraction chamber 20, the detection light L will be blocked by the coffee beverage C flowing along the strip-shaped filter 40. If the state in which no light reception signal is acquired continues before and after the filter block 22 is lowered, the determination unit 63 determines that a poor seal in the extraction chamber 20 has occurred, or that the coffee beverage C has remained in the extraction chamber 20. On the other hand, if the state in which a light reception signal is not acquired changes to a state in which a light reception signal is acquired before and after the filter block 22 is lowered, the determination unit 63 determines that a poor seal in the extraction chamber 20 has not occurred, and that the coffee beverage C does not remain in the extraction chamber 20.

[0078] If the determination unit 63 determines that a seal defect has occurred in the extraction chamber 20 or that coffee beverage C has remained in the extraction chamber 20 (step S11: YES), the notification control unit 64 causes the notification unit 72 to notify the beverage brewing device 1 of the possibility that a seal defect has occurred in the extraction chamber 20 or that coffee beverage C has remained in the extraction chamber 20 (step S5). As described above, the notification control unit 64 may also cause a notification unit of an information processing device that can be confirmed by an administrator to notify the occurrence of the abnormality. The reception unit 61 then stops accepting requests to serve coffee beverage C (step S6) and terminates the process. If a seal defect has occurred in the extraction chamber 20, the suspension of accepting requests to serve coffee beverage C is lifted after the seal defect is resolved by replacing the gasket 224 or the lifting mechanism 73, for example. If coffee beverage C remains in the extraction chamber 20, the suspension of acceptance of requests to serve coffee beverage C is lifted after the above-mentioned malfunction is resolved by resetting the drive time of the pump 25, repairing or replacing it, etc.

[0079] On the other hand, if the determining unit 63 determines that no sealing failure has occurred in the extraction chamber 20 and that no coffee beverage C remains in the extraction chamber 20 (step S11: NO), the providing control unit 62 performs a process to discard the raw material residue K (step S12). In the process of discarding the raw material residue K, the providing control unit 62 rotates the cylinder vibration unit 27 back and forth at least once to vibrate the cylinder 21, as shown in the left diagram at the bottom of FIG. 12 , thereby causing the raw material residue K adhering to the inner surface of the cylinder 21 to fall onto the strip filter 40. The providing control unit 62 then controls the feed motor 44 to rotate the drum 433 once until the feed detection switch 451 is no longer pressed and then pressed again. As the drum 433 rotates, the strip filter 40 is sent to the right, and the deposit of raw material residue K falls off the folded-back portion of the strip filter 40, and the portion of the strip filter 40 located near the feed mechanism 43 is stored in the waste storage unit 14. Furthermore, an unused area of ​​the strip filter 40 that has not been used to extract the coffee beverage C is sent below the cylinder 21. The drum 433 stops with the used area 401 positioned between the filter block 22 and the feeding mechanism 43. In other words, the filter feeding unit 42 feeds the strip filter 40 so that the unused area of ​​the strip filter 40 is positioned below the cylinder 21.

[0080] For example, the strip filter 40 may not be able to be fed due to a malfunction such as incorrectly setting the strip filter 40 in the filter storage unit 41, the strip filter 40 slipping between the rubber roller 435 and the drum 433, or the waste storage unit 14 becoming full and no longer being able to store the strip filter 40. Also, when the remaining amount of strip filter 40 is low, the adhesive force between the strip filter 40 and the core material 40B is greater than the frictional force generated between the drum 433 and the rubber roller 435 and the strip filter 40, causing the strip filter 40 to slip between the rubber roller 435 and the drum 433, making it impossible to feed the strip filter 40. In these cases, the raw material residue K is not conveyed and does not fall from the strip filter 40.

[0081] Furthermore, if the coffee beans for the coffee beverage C to be provided are out of stock or the coffee bean powder F is not added to the extraction chamber 20 due to a malfunction such as a breakdown of the mill 12, no raw material residue K is generated even if the strip filter 40 is sent. In this case, the raw material residue K does not fall from the strip filter 40.

[0082] 13, the determination unit 63 determines whether the raw material residue K has been transported and dropped into the waste storage unit 14 (step S13). When the filter block 22 is located at the standby position, if the outlet pipe 23 is not disconnected from the block-side connecting pipe 221B and the pump-side connecting pipe 132 and the used region 401 is not bent, the detection light L is not blocked by the outlet pipe 23. On the other hand, when the raw material residue K drops into the waste storage unit 14, the detection light L is temporarily blocked by the raw material residue K as it falls. The determination unit 63 determines that the raw material residue K has dropped when the state of acquiring the light receiving signal shifts from a state of temporarily not acquiring the light receiving signal. On the other hand, the determination unit 63 determines that the raw material residue K has not dropped when the state of acquiring the light receiving signal continues.

[0083] If the determination unit 63 determines that the residual ingredients K have not fallen (step S13: NO), the notification control unit 64 causes the notification unit 72 to notify the beverage brewing device 1 that the strip filter 40 may not have been fed, that the amount of strip filter 40 remaining may be low, or that coffee bean powder F may not have been dispensed into the extraction chamber 20 (step S5). As described above, the notification control unit 64 may also cause a notification unit of an information processing device that can be confirmed by an administrator to notify the occurrence of the abnormality. Then, the reception unit 61 stops accepting requests to serve the coffee beverage C (step S6) and ends the process. If the raw material residue K does not fall, the suspension of acceptance of the request to serve coffee beverage C will be lifted after the above-mentioned malfunction is resolved by resetting the strip filter 40 in the filter storage section 41, eliminating slippage of the strip filter 40 between the rubber roller 435 and the drum 433, removing waste from the waste storage section 14, replacing the roll body 40A, replenishing coffee beans, or repairing or replacing the mill 12, etc.

[0084] On the other hand, if the determination unit 63 determines that the raw material residue K has fallen (step S13: YES), the serving control unit 62 ends the serving process while maintaining a state in which a serving request for the coffee drink C can be accepted.

[0085] <Effects of the embodiment> The beverage brewing machine 1 includes an abnormality detection unit 5 that detects whether or not raw material residue K has not been conveyed as the filter feed unit 42 feeds the strip filter 40 after the filter block 22 has been separated from the cylinder 21. Therefore, if the abnormality detection unit 5 detects that raw material residue K has not been conveyed, the serving of the next coffee beverage C can be stopped. Therefore, if the reason the raw material residue K has not been conveyed is that the strip filter 40 has not been fed and the raw material residue K remains below the cylinder 21, it is possible to prevent the next extraction from being performed with the raw material residue K remaining in the cylinder 21. This makes it possible to prevent the provision of a low-quality coffee beverage C or the occurrence of poor extraction, and to properly serve the coffee beverage C.

[0086] The beverage extractor 1 allows the raw material residue K to fall by folding back the strip filter 40 with the fall assisting section 222, and detects the raw material residue K while it is falling with the abnormality detecting section 5. Therefore, the raw material residue K can be disposed of and conveyed at approximately the same time.

[0087] The abnormality detection unit 5 emits detection light L from the light-emitting unit 51 so that it is blocked by the falling raw material residue K, and detects whether or not the raw material residue K has fallen based on the state of reception of the detection light L by the light-receiving unit 52. For this reason, abnormalities can be detected using a so-called optical sensor that is generally readily available.

[0088] When the beverage extraction machine 1 detects that the raw material residue K has not been conveyed, the notification control unit 64 controls the beverage extraction machine 1 to notify the user that the strip-shaped filter 40 may not have been sent. This allows the administrator to easily recognize the nature of the abnormality and to take appropriate and prompt recovery action.

[0089] When it is detected that the raw material residue K has not been conveyed, the beverage extraction device 1 controls the notification control unit 64 to notify that the remaining amount of the strip filter 40 may be low. Therefore, it is possible to detect that the remaining amount of the strip filter 40 is low without providing a sensor or the like in the filter accommodating unit 41.

[0090] When it is detected that the raw material residue K has not been conveyed, the beverage extraction device 1, under the control of the notification control unit 64, issues a notification that the coffee bean powder F may not have been added to the extraction chamber 20. Therefore, it is possible to detect a malfunction of the mill 12 or an out-of-stock of coffee beans without providing a sensor or the like in the mill 12 to detect a malfunction or a sensor or the like in the canister 11 to detect an out-of-stock of coffee beans.

[0091] The beverage brewing device 1 is equipped with an abnormality detection unit 5 that detects whether or not coffee beverage C in the extraction chamber 20 is leaking from between the cylinder 21 and the filter block 22. Therefore, if the abnormality detection unit 5 detects that coffee beverage C is leaking from the extraction chamber 20, the serving of coffee beverage C can be stopped. This makes it possible to prevent the serving process of coffee beverage C from being performed while coffee beverage C is leaking from between the cylinder 21 and the filter block 22, and allows coffee beverage C to be served appropriately.

[0092] The abnormality detection unit 5 emits detection light L from the light-emitting unit 51 so that the light is blocked by coffee beverage C leaking from between the cylinder 21 and the filter block 22, and detects whether or not coffee beverage C in the extraction chamber 20 is leaking from between the cylinder 21 and the filter block 22 based on the state of reception of the detection light L by the light-receiving unit 52. For this reason, abnormalities can be detected using a commonly available optical sensor.

[0093] After the coffee beverage C has been provided and the filter block 22 has moved to the standby position, the abnormality detection unit 5 detects whether the detection light L has been blocked by the coffee beverage C as a process for detecting whether the coffee beverage C has leaked from the extraction chamber 20 or whether the coffee beverage C has remained in the extraction chamber 20. When the abnormality detection unit 5 detects that the detection light L has been blocked by the coffee beverage C, the beverage extraction device 1 controls the notification control unit 64 to notify that the coffee beverage C may have leaked from the extraction chamber 20 or that the coffee beverage C may have remained in the extraction chamber 20. This allows the manager to easily recognize the nature of the abnormality and enable appropriate and prompt recovery work to be carried out.

[0094] The portion of the strip filter 40 located above the filter block 22 is inclined such that its front end is positioned higher than its rear end, following the upper right edge of the filter block 22, when the filter block 22 is separated from the cylinder 21. The detection light L is emitted so as to pass through a position rearward of the center of the area vertically below the filter block 22. With this configuration, coffee beverage C that has leaked from the extraction chamber 20 or coffee beverage C that remains in the extraction chamber 20 flows down in a concentrated manner from a relatively rearward portion of the strip filter 40, improving the ability of the coffee beverage C to block the detection light L and increasing the sensitivity of detecting that coffee beverage C has leaked from the extraction chamber 20 or that coffee beverage C remains in the extraction chamber 20.

[0095] The beverage brewing device 1 is equipped with an abnormality detection unit 5 that detects whether or not the outlet pipe 23 has come off from the block-side connecting pipe 221B. Therefore, when the abnormality detection unit 5 detects that the outlet pipe 23 has come off from the block-side connecting pipe 221B, the serving of the coffee beverage C can be stopped. This makes it possible to prevent the serving process of the coffee beverage C from being performed while the coffee beverage C is still leaking from the discharge portion 221 of the filter block 22, and to properly serve the coffee beverage C. In particular, because the beverage brewing device 1 also detects whether or not the outlet pipe 23 has come off from the pump-side connecting pipe 132, it is possible to prevent the serving process of the coffee beverage C from being performed while the coffee beverage C is still leaking from the outlet pipe 23.

[0096] When the filter block 22 is located at the extraction position, the abnormality detection unit 5 emits detection light L from the light-emitting unit 51 so that the light is blocked by the outlet pipe 23 that is not disconnected from the block-side connecting pipe 221B and the pump-side connecting pipe 132, but is not blocked by the outlet pipe 23 that has disconnected from the block-side connecting pipe 221B or the pump-side connecting pipe 132. The abnormality detection unit 5 then detects whether the outlet pipe 23 has disconnected from the block-side connecting pipe 221B or the pump-side connecting pipe 132 based on the state of reception of the detection light L by the light-receiving unit 52. Therefore, abnormalities can be detected using a commonly available optical sensor.

[0097] When the filter block 22 is located at the extraction position, the detection light L is not blocked by the raw material residue K and is emitted to pass through the lower side of the used region 401. When the filter block 22 moves to the extraction position, the abnormality detection unit 5 detects whether the outlet pipe 23 has come off from the block-side connecting pipe 221B or the pump-side connecting pipe 132 based on the reception state of the detection light L at the light receiving unit 52. Here, when the filter block 22 is located at the standby position and the disconnection of the outlet pipe 23 is detected based on the reception state of the detection light L, for example, as shown in FIG. 9A, even if the outlet pipe 23 is not disconnected, the detection light L is blocked by the raw material residue K attached to the bent used region 401, as shown in FIG. 10B, and it is determined that the outlet pipe 23 has come off. In this embodiment, the filter block 22 is positioned at the extraction position, and the detection light L is not blocked by the raw material residue K attached to the used area 401, and the detachment of the outlet pipe 23 is detected based on the reception state of the detection light L, so that the detachment of the outlet pipe 23 can be detected appropriately.

[0098] When the filter block 22 moves to the extraction position, the abnormality detection unit 5 detects whether the outlet pipe 23 has come off the block-side connecting pipe 221B or the pump-side connecting pipe 132, based on the state of reception of the detection light L by the light receiving unit 52. Furthermore, when the filter block 22 moves to the standby position after the coffee beverage C has been dispensed, the abnormality detection unit 5 detects whether the coffee beverage C has leaked from the extraction chamber 20 or whether the coffee beverage C remains in the extraction chamber 20, based on the state of reception of the detection light L by the light receiving unit 52. Furthermore, when the strip filter 40 is fed after the filter block 22 moves to the standby position, the abnormality detection unit 5 detects whether the raw material residue K has not been conveyed during the feeding operation, based on the state of reception of the detection light L by the light receiving unit 52. Therefore, the abnormality detection unit 5 can detect different abnormalities based on the state of reception of the detection light L at different times when the detection light L is emitted in one state.

[0099] [Modification of the embodiment] It goes without saying that the present disclosure is not limited to the embodiments described above, and various modifications can be made without departing from the spirit of the present disclosure. Furthermore, the above embodiments and the modifications described below may be combined in any way as long as they function properly.

[0100] For example, an optical sensor has been exemplified as the abnormality detection unit 5 that detects that the raw material residue K has not been conveyed, but a thermal sensor, a passive sensor, an image sensor, or other configuration that can detect the abnormality may also be used.

[0101] Although an example has been given of a configuration in which the alarm unit 72 is arranged inside the beverage extraction device 1, as shown in Figure 14A or Figure 14B, an alarm unit 72 arranged outside the beverage extraction device 1A may also be used to alert of an abnormality in the beverage extraction device 1A.

[0102] 14A shows an abnormality detection system 100A including a beverage extraction machine 1A, a server device 81A, and a management terminal device 82A. The beverage extraction machine 1A includes an extraction unit 2, a filter supply unit 4, an abnormality detection unit 5, and a control unit 6A. The control unit 6A includes a reception unit 61, a supply control unit 62, and a determination unit 63. The server device 81A is communicatively connected to the beverage extraction machine 1A and the management terminal device 82A via a communication network N such as the Internet. The server device 81A includes a notification control unit 64. The management terminal device 82A is a terminal device such as a mobile terminal that can be accessed by the administrator of the beverage extraction machine 1A. In such an abnormality detection system 100A, when processing step S5, the notification control unit 64 of the server device 81A receives the judgment result from the judgment unit 63 via the communication network N and transmits the notification content to the management terminal device 82A via the communication network N, thereby causing the notification unit 72 to notify information regarding the abnormality in the beverage extraction device 1A.

[0103] FIG. 14B shows an abnormality detection system 100B including a beverage extraction machine 1B, a server device 81B, and a management terminal device 82A. Beverage extraction machine 1B differs from beverage extraction machine 1A shown in FIG. 14A in that control unit 6B does not include determination unit 63. Server device 81B differs from server device 81A in that it includes determination unit 63. In this abnormality detection system 100B, when performing the processes of steps S3, S11, and S13, determination unit 63 of server device 81B receives a light reception signal from abnormality detection unit 5 via communication network N and determines whether an abnormality has occurred in beverage extraction machine 1B. Notification control unit 64 of server device 81B transmits notification content to management terminal device 82A via communication network N, thereby causing notification unit 72 to notify information related to the abnormality in beverage extraction machine 1B.

[0104] The position at which it is detected that the raw material residue K has not been conveyed may be, for example, detection positions P1 to P11 shown in Figure 15A, Figure 15B, Figure 15C, Figure 15D, or Figure 15E. Examples of sensors used for detection include an optical sensor, a thermal sensor, a passive sensor, and an image sensor. Note that the reference symbols in Figures 15A to 15E other than the detection positions represent the same components as those in the beverage extraction device 1 of the above embodiment.

[0105] At each detection position P1 to P11, if the abnormality detection unit detects detected object A (raw material residue K falling), detected object B (raw material residue K adhering to the strip filter 40 without falling), or detected object C (raw material residue K located in the part of the strip filter 40 before it is folded back), it determines that raw material residue K has been transported. Detection positions P1, P2, P8: Object A or B Detection positions P3, P5, P7, P9, P11: Detected object B Detection positions P4, P6, P10: Detected object C

[0106] 15A, 15B, and 15C, the distance from feed mechanism 43 to waste storage unit 14 is relatively short, making it difficult to secure sufficient space for disposing an abnormality detection unit, and therefore detection is preferably performed at detection positions P1, P2, P4, and P6, excluding detection positions P3, P5, and P7, which are below feed mechanism 43. In the beverage extractor shown in Figures 15D and 15E, the distance from feed mechanism 43 to waste storage unit 14 is relatively long, making it easy to secure sufficient space for disposing an abnormality detection unit, and therefore there is no particular problem with a configuration in which detection is performed at detection positions P9 and P11 below feed mechanism 43, as long as strip filter 40 does not bend.

[0107] 9A, the configuration has been described in which the detection light L is blocked by a position behind the center of the strip filter 40 in the front-to-rear direction. However, the detection light L may be emitted so as to be blocked by a central portion T of the raw material residue K in the front-to-rear direction, as indicated by a dashed line in FIG. 16, i.e., the portion of the raw material residue K that is longest in the up-down direction. This configuration increases the time that the detection light L is blocked by the raw material residue K, thereby improving the sensitivity of detecting that the raw material residue K has not been conveyed. In this case, the beverage brewing machine 1 does not need to be provided with a function for detecting that the outlet pipe 23 has been removed, or a separate abnormality detection unit for detecting that the outlet pipe 23 has been removed may be provided in the beverage brewing machine 1. The detection light L may also be emitted so as to be blocked by a portion ahead of the center of the strip filter 40 in the front-to-rear direction.

[0108] If the determination unit 63 determines that the residual ingredients K did not fall, the notification control unit 64 may cause the notification unit 72 to notify only that the strip filter 40 may not have been fed, as an abnormality in the beverage brewing device 1, or may cause the notification unit 72 to notify only that there has been an abnormality in the beverage brewing device 1. The filter accommodating unit 41 may be provided with a sensor or switch that detects when the remaining amount of the strip filter 40 is low, the mill 12 may be provided with a sensor that detects a malfunction, or the canister 11 may be provided with a sensor that detects when the coffee beans are out of stock.

[0109] The beverage extraction device 1 does not need to be provided with a function to detect that the outlet pipe 23 has come loose, that there is a sealing defect in the extraction chamber 20, or that coffee beverage C has remained in the extraction chamber 20, and the beverage extraction device 1 may be provided with a separate abnormality detection unit that detects these abnormalities.

[0110] Although coffee beverage C has been exemplified as a beverage brewed by the beverage brewing device 1, it may also be a beverage that generates raw material residue during brewing, such as black tea or green tea. The beverage brewing device 1 has been exemplified as being configured to stir the coffee beverage C using the first flow path R1, but such a stirring function need not be provided. The filter accommodating section 41 has been exemplified as being configured to hold the strip filter 40 in the form of a roll 40A, but it may also be held in a state where it is folded into multiple layers. The strip filter 40 may be made of paper, or may be made of a material other than paper. [Industrial Applicability]

[0111] The present disclosure is applicable to beverage extraction machines, anomaly detection methods, and anomaly detection systems. [Explanation of symbols]

[0112] 1,1A,1B Beverage Brewing Equipment 2 Extraction part 4. Filter supply section 5. Anomaly detection section 6 Control Unit 10 Main Unit 11 canister 12 mil 13 Internal housing 14 Waste collection section 20 Extraction chamber 21 cylinders 22 Filter Block 23 Outlet piping 24 Cover 25 Pump 26 Shutter 27 Cylinder vibration section 28 Waste liquid piping 29 1st adjustment section 30 Second adjustment section 31 3rd adjustment section 40 Strip Filter 40A roll body 40B core material 41 Filter housing 42 Filter feed section 43 Feeding mechanism 44 Feed motor 45 Feed detector 51 Light-emitting part 52 Light receiving section 61 Reception Department 62 Provision control section 63 Judgment section 64 Notification control unit 71 Operation section 72 Information Department 73 Lifting mechanism 74 Hot water supply section 81A, 81B Server device 82A Management terminal 100A, 100B Anomaly Detection System 131 Support arm 132 Pump side connecting pipe 221 Discharge part 221A Funnel part 221B Block side connecting pipe 222 Fall Support Unit 223 Mesh material 224 Gasket 225 Wall 241 Raw material input section 242 Hot water injection part 243 Steaming section 244 Upper piping 251 Piping for provision 252 Relay piping 401 Space Used 411 Roll body support shaft 431 Support 431A Support plate 431B Connection Plate 432 Drum rotation shaft 433 Drums 434 Rubber roller shaft 435 Rubber Roller 436 Spring 441 Joint 441A Small diameter section 451 Feed detection switch 452 Switch Cam A. Air C. Coffee drinks F Coffee bean powder K Raw material residue L Detection light R1 First flow path R2 Second flow path

Claims

1. A beverage brewing device for brewing a beverage in a brewing chamber, A cylindrical cylinder; a filter feeding unit that feeds the strip-shaped filter so that an unused area of ​​the strip-shaped filter that filters the beverage is positioned below the cylinder; a filter block configured to be movable relative to the cylinder and sandwiching the strip filter therebetween to close the opening at the lower end of the cylinder, thereby forming the extraction chamber; a discharge portion provided in the filter block and configured to discharge the beverage extracted in the extraction chamber; an abnormality detection unit that detects whether or not residue of ingredients used in extracting the beverage has not been conveyed during the feeding operation of the strip filter by the filter feeding unit, Beverage extraction equipment.

2. a drop assisting unit that drops the residue from the strip filter, The abnormality detection unit detects whether the residue falls during the feeding operation.

2. The beverage brewing device of claim 1.

3. The abnormality detection unit includes a light emitting unit that emits detection light so that the detection light is blocked by the falling residue, and a light receiving unit that receives the detection light.

3. The beverage brewing device of claim 2.

4. the detection light is emitted so as to be blocked by a portion of the residue that is falling and has the longest vertical length; 4. The beverage brewing machine of claim 3.

5. further comprising a notification control unit that controls the notification unit; The notification control unit, when the abnormality detection unit detects that the residue has not been conveyed, causes the notification unit to notify information regarding the abnormality of the beverage extraction device.

5. A beverage brewing machine according to any one of claims 1 to 4.

6. a filter holding portion that holds the strip filter so that the strip filter can be pulled out; a notification control unit that controls the notification unit, the filter feeding unit is configured to pull out and feed the strip filter from the filter holding unit by rotating a pair of rotors that sandwich the strip filter, one end of the strip filter is fixed to the filter holder with a fixing force greater than the friction force between the pair of rotors and the strip filter, the notification control unit, when the abnormality detection unit detects that the residue has not been conveyed, causes the notification unit to notify that the remaining amount of the band-shaped filter may be low.

5. A beverage brewing machine according to any one of claims 1 to 4.

7. a raw material supply unit that supplies the raw material to the extraction chamber; a notification control unit that controls the notification unit, the notification control unit, when the abnormality detection unit detects that the residue has not been conveyed, causes the notification unit to notify that the raw material may not have been supplied from the raw material supply unit to the extraction chamber.

5. A beverage brewing machine according to any one of claims 1 to 4.

8. A method for detecting an abnormality in a beverage brewing device that brews a beverage in a brewing chamber, comprising: The beverage extraction device is A cylindrical cylinder; a filter feeding unit that feeds the strip-shaped filter so that an unused area of ​​the strip-shaped filter that filters the beverage is positioned below the cylinder; a filter block configured to be movable relative to the cylinder and sandwiching the strip filter therebetween to close the opening at the lower end of the cylinder, thereby forming the extraction chamber; a discharge portion provided in the filter block and configured to discharge the beverage extracted in the extraction chamber, The abnormality detection method includes: a discharge process for discharging the beverage from the discharge unit, and after the filter block is separated from the cylinder, a detection is made as to whether or not residue of the ingredients used in extracting the beverage has been conveyed in association with the feeding operation of the strip filter by the filter feeding unit; Anomaly detection methods.

9. a filter block configured to be movable relative to the cylinder and to form a brewing chamber by sandwiching a strip-shaped filter for filtering the beverage between the filter block and closing an opening at the lower end of the cylinder; an extraction unit provided in the filter block and including a discharge unit for discharging the beverage extracted in the brewing chamber; and a drop assist unit for dropping residue of ingredients used in extracting the beverage from the strip-shaped filter. a filter feeding unit that feeds the strip filter so that an unused region of the strip filter is located below the cylinder; an abnormality detection unit including a light emitting unit that emits detection light so that the detection light is blocked by the falling residue, and a light receiving unit that receives the detection light; a determination unit that determines whether the detection light is blocked by the residue; and a notification unit that notifies the user that the residue has been transported in accordance with the transport operation of the strip filter by the filter transport unit when the determination unit determines that the detection light has been blocked. Anomaly detection systems.

Images