JP2007241603A - Beverage extractor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a beverage extractor which dispenses with the moving space of a cylinder and therefore enables a device to be made compact. <P>SOLUTION: Since the beverage extractor is provided with a raw material dreg discharge mechanism 70 provided so as to be moved along the outer surface of the left side end part of a fixed cylinder 20 and for scraping off raw material dregs A' extruded from the left side end part of the cylinder 20 to the outside with a scraper 72, the raw material dregs A' are scraped off without moving the cylinder 20, and the device is made compact without the need of the moving space of the cylinder 20. Also, since the raw material dreg discharge mechanism 70 is linked with a drive shaft 13, manufacture costs are reduced without the need of a separate power source for driving the raw material dreg discharge mechanism 70. Also, since the space for the power source for driving the raw material dreg discharge mechanism 70 is not needed, the device is made compact. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a beverage extractor that extracts a beverage from a raw material such as coffee beans ground in a powder form.

Conventionally, as a beverage extractor of this type, a cylinder having an opening at least at one end in the central axis direction, a piston provided so as to be able to be inserted into and removed from the opening, and a raw material basket in the cylinder on the opening side. What is provided with the raw material soot extrusion means which can be extruded is known (for example, refer patent document 1).
JP 2001-167353 A

  In the conventional beverage extractor, the cylinder is provided so as to be movable between the position where the raw material is charged and the position where the beverage is extracted. In order to discharge the raw material after the beverage has been extracted, the raw material is removed from the opening. The cylinder is moved while being exposed to the outside, and the raw material waste is wiped off by the raw material discharge part provided in the movement path of the opening. For this reason, in the conventional drink extractor, since the movement space of a cylinder is needed, there existed a problem that an apparatus enlarged.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a beverage extractor capable of downsizing the apparatus without requiring a moving space for the cylinder. is there.

  In order to achieve the above object, the present invention provides a cylinder having an opening at least at one end in the central axis direction, a piston provided so as to be able to be inserted into and removed from the opening, and a raw material basket in the cylinder outside the opening. In the beverage extractor provided with the extrudable raw material koji extrusion means, the raw material koji is provided so as to move along the outer surface of the opening of the cylinder and is extruded from the opening to the outside of the cylinder by the raw material koji extrusion means. Equipped with a raw material slag discharge mechanism.

  As a result, the raw material soot extruded from the opening to the outside of the cylinder by the raw material soot pushing means is discharged by the raw material soot discharging mechanism that moves along the outer surface of the opening of the cylinder, so that the raw material can be moved without moving the cylinder. The kite is wiped out.

  According to the present invention, since the raw material can be removed without moving the cylinder, it is possible to reduce the size of the apparatus without requiring a space for the cylinder to move.

  1 to 17 show an embodiment of the present invention. FIG. 1 is a schematic configuration diagram of a beverage extraction system, FIG. 2 is a plan view of a beverage extractor, and FIG. 3 is a plan sectional view of the beverage extractor. 4 is a cross-sectional view taken along line AA 'in FIG. 2, FIG. 5 is a cross-sectional view taken along line BB' in FIG. 2, FIG. 6 is a cross-sectional view taken along line CC 'in FIG. 8 is an exploded perspective view of the raw material koji discharging mechanism, and FIGS. 9 to 17 are operation explanatory views of the beverage extractor. In the following description, the right side of FIG. 2 is shown as right, the left side of FIG. 2 as left, the lower side of FIG. 2 as front, the upper side of FIG. 2 as the rear, the front side of FIG. To do.

  The beverage extractor 1 of the present invention is connected to a beverage extraction system as shown in FIG. 1 and can extract regular coffee and espresso coffee. This beverage extraction system includes canisters 2a and 2b for storing coffee beans for regular coffee and espresso coffee, a mill 3 for grinding coffee beans carried out of canisters 2a and 2b, and hot water. A hot water storage tank 4 for storing hot water, and a pump 5 for pumping hot water to the beverage extractor 1, and adding ground water A as a raw material to the beverage extractor 1 and supplying hot water, Coffee as an extract is poured into the cup from the nozzle 6.

  The beverage extractor 1 includes a cylinder 20 fixed to the cylinder base 10, a piston unit 30 provided to be movable in the left-right direction with respect to the cylinder 20, and a hot water supply pipe 40 fixed to the right side surface of the cylinder base 10. And an extraction pipe 50 fixed to the left side surface of the cylinder base 10.

  The cylinder base 10 is made of a box-shaped member having an open top surface, and the cylinder 20 is fixed to substantially the center portions of the bottom surface in the front-rear direction and the left-right direction. A bottom surface of the cylinder base 10 located on the left side of the cylinder 20 is provided with a raw material soot discharge port 11 for dropping the raw material soot A ′ discharged from the cylinder 20 into a raw material soot recovery unit (not shown) provided below. ing. A pair of drive shafts 13 extending in the left direction from the front end side and the rear end side are provided on the side wall 12 on the right side surface side of the cylinder base 10, and the piston unit 30 is moved in the left-right direction by the rotation of each drive shaft 13. It is like that. Each drive shaft 13 is composed of a rod-like member having a helical thread formed on the outer peripheral surface, and is connected to an electric motor 15 via a gear box 14 provided outside the side wall 12 on the right side surface of the cylinder base 10. It is connected. The motor 15 can switch the rotation direction of the rotation shaft, and can switch the rotation direction of each drive shaft 13 by switching the rotation direction of the rotation shaft.

  The cylinder 20 is made of a member formed in a cylindrical shape with both ends opened, and is fixed to the bottom surface of the cylinder base 10 with the central axis directed in the left-right direction. A raw material charging port 21 extending in the front-rear direction is provided on the peripheral surface located on the upper left side of the cylinder 20, and a shooter 3 a for guiding the ground beans, which are ground coffee beans by the mill 3, is connected to the cylinder 20. It has come to be. A rotation restricting portion 22 for restricting the rotation of a scraper, which will be described later, is provided on the upper rear side of the cylinder 20 so as to extend rearward.

  The piston unit 30 is connected to a frame 31 supported by the cylinder base 10 so as to be movable in the left-right direction with respect to the cylinder 20 and is movably connected to the frame 31 in the left-right direction so as to be movable in the cylinder 20. The first piston 32 as the raw material squeezing means and the piston fixed to the frame 31 so as to face the first piston 32 and provided as a piston that can be inserted into and removed from the left end of the cylinder 20 into the cylinder 20 And a second piston 33.

  The frame 31 is formed of a member provided so as to surround the front side, the rear side, and the right side of the cylinder 20, and a second piston 33 is fixed to the left end surface. Nuts 31 a to which the drive shaft 13 is screwed are provided on the front end side and the rear end side of the right side surface of the frame 31, respectively, and the frame 31 moves in the left-right direction as the drive shaft 13 rotates. That is, when the rotational direction of the drive shaft 13 is viewed from the left side, the frame 31 moves to the left side, and when the rotational direction is counterclockwise, the frame 31 moves to the right side. Yes. Further, the frame 31 is provided with a scraper moving portion 31b for projecting a scraper, which will be described later, to the left at a substantially central portion in the width direction inside the upper surface of the rear side member.

  The first piston 32 is provided so as to be fitted to the inner surface of the cylinder 20, and a piston ring 32 a for maintaining airtightness in the cylinder 20 in the circumferential direction is provided on the outer peripheral portion on the distal end side. Yes. A piston rod 32c having a hot water supply passage 32b that is provided so as to extend in the left-right direction and that opens at the right end portion is provided at the radial center portion on the right side surface side of the first piston 32. A hot water supply plate 32 d having a plurality of hot water supply holes is provided on the entire left side of the first piston 32. The first piston 32 is coupled to a piston guide 34 fixed to the frame 31 so as to be movable in the left-right direction within a predetermined range.

  The piston guide 34 is made of a cylindrical member fixed to the right side surface of the frame 31 with the central axis directed in the left-right direction, and the piston rod 32c of the first piston 32 is inserted therein. Further, the piston guide 34 is provided with an extending portion 34a in the circumferential direction on the inner peripheral surface of the left end portion. As for the 1st piston 32, the piston rod 32c is inserted in the piston guide 34, and the nut 35 is attached to the outer peripheral surface of the edge part of the piston rod 32c. That is, the first piston 32 is movable in the left-right direction with respect to the piston guide 34 within a range in which the right side surface of the first piston 32 and the left side surface of the nut 35 are in contact with the extending portion 34a. Yes. The piston rod 32 c positioned between the extending portion 34 a and the nut 35 is provided so that a coiled piston urging spring 36 is wound around, and the first piston 32 is placed on the right side with respect to the frame 31. It is supposed to be energized.

  The second piston 33 is provided so as to be fitted to the inner surface of the cylinder 20, and a piston ring 33 a is provided on the outer peripheral portion on the tip end side thereof to keep the airtightness in the cylinder 20 in the circumferential direction. . The right side surface of the second piston 33 is provided with a filter 33b made of a metal plate-like member provided with a plurality of beverage outflow holes over the entire surface. In addition, a piston rod 33d having an extraction flow path 33c provided therein is provided at the radial center of the left side surface of the second piston 33 so as to extend in the left-right direction. The peripheral surface located on the left end side of the piston rod 33d is provided with a beverage outflow hole 33e having a predetermined first opening diameter so that the beverage flowing through the extraction channel 33c flows out of the beverage outflow hole 33e. It has become.

  The hot water supply pipe 40 is made of a tubular member extending in the left-right direction, and is inserted into the hot water supply flow path 32b of the first piston 32 that moves in the left-right direction. In addition, a seal ring 41 is provided on the outer peripheral portion on the left end side of the hot water supply pipe 40 to maintain airtightness in the hot water supply flow path 32b, so that the hot water flowing through the hot water supply pipe 40 does not leak. It has come to circulate.

  The extraction pipe 50 is made of a tubular member extending in the left-right direction, and a piston rod 33d of the second piston 33 that moves in the left-right direction is inserted into the pipe on the right end side. Further, an enlarged portion 50a formed larger than the inner diameter of other tubes is provided in the right end portion of the extraction tube 50, and the extraction tube 50 is extracted from the extraction flow path 33c of the second piston 33 in the enlarged portion 50a. A flow path switching member 51 is provided for switching the extraction flow path of the beverage that circulates in the bottle.

  The flow path switching member 51 is formed of a cylindrical member having an outer diameter slightly smaller than the inner diameter of the enlarged portion 50a, and is inserted into the pipe at the right end of the extraction pipe 50 with the central axis directed in the left-right direction. The flow path switching member 51 is fixed in the extraction pipe 50 by a closing plate 52 formed in an annular shape for closing the end of the extraction pipe 50. On the outer peripheral surface of the flow path switching member 51, a seal ring 51a for closing a gap between the inside of the extraction pipe 50 and the outer peripheral surface of the flow path switching member 51 is provided at a substantially central portion in the central axis direction. Yes. Further, on the inner peripheral surface of the flow path switching member 51, seal rings 51b for closing a gap between the inner peripheral surface of the flow path switching member 51 and the outer peripheral surface of the piston rod 33d are provided at both ends in the central axis direction. Are provided respectively. Further, the flow path switching member 51 is provided with a communication hole 51c that communicates between the seal rings 51b on the inner peripheral surface side and the left side of the seal ring 51a on the outer peripheral surface side (downstream side in the flow direction of the extract). ing. The communication hole 51c is formed with a hole having a second opening diameter smaller than the first opening diameter of the beverage outflow hole 33e. Further, the channel switching member 51 is provided with four protrusions on the left end surface in the central axis direction at intervals in the circumferential direction, and in the radial direction of the left end surface of the channel switching member 51 and the enlarged portion 50a. A gap through which the extract is circulated is formed between the extending surface. That is, when the beverage outflow hole 33e of the second piston 33 is located on the left side of the flow path switching member 51, a first extraction flow path that directly communicates with the beverage outflow hole 33e and the inside of the extraction pipe 50 is formed. . Further, when the beverage outflow hole 33e of the second piston 33 is positioned between the seal rings 51b on the inner peripheral surface of the flow path switching member 51, the communication hole 51c and the flow through the beverage outflow hole 33e and the extraction pipe 50 are provided. A second extraction flow path is formed which communicates through a gap between the outer surface of the path switching member 51 and the inner surface of the enlarged portion 50a.

  Also, the piston unit 30 is provided on the right side so that the end of the piston rod 32c of the first piston 32 contacts, and the first piston 32 moves to the left with respect to the frame 31 that moves to the right. The raw material compression member 60 which provides the force to make is provided. The raw material compression member 60 is provided so as to be movable in the left-right direction, and a pair of front and rear raw material compression springs 61 is interposed between the side wall 12 on the right side surface of the cylinder base 10. Each raw material compression spring 61 has a stronger biasing force than the piston biasing spring 36 and moves the first piston 32 in the left direction against the biasing force of the piston biasing spring 36.

  In addition, the beverage extractor 1 includes a raw material leash discharging mechanism 70 for removing the raw material leash A ′ pushed out from the left end of the cylinder 20 by the first piston 32 downward. The raw material waste discharge mechanism 70 includes a raw material waste discharge shaft 71 provided so as to extend to the left from the left end portion of the drive shaft 13 located behind, and a scraper as a raw material waste discharge member connected to the raw material waste discharge shaft 71. 72 and a scraper guide portion 73 for forcibly returning the scraper 72 after the discharging operation of the raw material A ′ to the standby position by moving the frame 31 to the right side.

  The raw material discharge shaft 71 is made of a rod-shaped member having a circular cross section, and the right end is fixed to the left end of the drive shaft 13 so as to rotate together with the drive shaft 13.

  The scraper 72 includes a scraper body 72a, a first cylindrical member 72b, and a second cylindrical member 72c. From the right side, the scraper body 72a, the first cylindrical member 72b, and the second cylindrical member 72c are arranged in this order. The raw material soot discharge shaft 71 is inserted in the state of being arranged. The scraper body 72a is formed in a rod shape having a triangular cross section, and a cylindrical shaft insertion portion 72d through which the raw material waste discharge shaft 71 is inserted is provided on one axial end side thereof. The shaft insertion portion 72d, the first cylindrical member 72b, and the second cylindrical member 72c are provided with connecting portions 72e, 72f, and 72g on their outer peripheral surfaces, and are connected to each other by a connecting shaft 72h. Yes. A torsion spring 72i is wound between the connecting portion 72e and the connecting portion 72f of the connecting shaft 72h and between the connecting portions 72f and 72g, and the scraper main body 72a and the second cylindrical shape are wound by the torsion springs 72i. A force is applied to rotate the member 72c in one direction around the connecting shaft 72h, and a force in which the first cylindrical member 72b rotates in the other direction about the connecting shaft 72h. That is, the inner peripheral surfaces of the insertion portion 72d, the first cylindrical member 72b, and the second cylindrical member 72c of the scraper main body 72a are in contact with the outer peripheral surface of the raw material discharge shaft 71 by the respective torsion springs 72i. A frictional force is generated between the eaves discharge shaft 71 and the scraper 72. As a result, the scraper 72 rotates together with the raw material soot discharge shaft 71, and when the rotation of the scraper 72 is restricted by the frame 31 or the rotation restricting portion 22 of the cylinder 20, only the raw material soot discharge shaft 71 rotates against the frictional force. It is supposed to be. Further, when the scraper 72 receives a force in the central axis direction of the raw material soot discharge shaft 71 by the left inner surface of the frame 31 or the scraper moving portion 31b, the scraper 72 moves in the direction of the central axis of the raw material soot discharge shaft 71 against the friction force. It is like that. Further, an extending portion 72j is provided on the outer peripheral surface of the second cylindrical member 72c so as to extend downward when the scraper 72 is in the standby posture, and the extending portion 72j is provided after the discharging operation of the raw material A ′. Is in contact with the scraper guide 73.

  The scraper guide part 73 is provided on a member on the rear surface side of the frame 31 so that the extension part 72j of the second cylindrical member 72c comes into contact with the lower part. The scraper guide portion 73 is provided so as to incline downward from the right side to the left side, and is provided so as to project forward.

  In the beverage extractor 1 configured as described above, the first piston 32 is positioned on the right side of the raw material inlet 21 in the cylinder 20 as a standby position, and the second piston 33 is the raw material in the cylinder 20. It is located on the left side of the inlet 21.

  When extracting regular coffee, first, coffee beans for regular coffee are taken out of the canister 2a and ground into a powder by the mill 3, and as shown in FIG. 9, the raw material is A raw material A (here, 6 grams). It is introduced into the cylinder 20 through the introduction port 21.

  Next, as shown in FIG. 10, the motor 15 is driven to rotate the drive shaft 13 counterclockwise as viewed from the left side, and the piston is moved until the second piston 33 moves to a position for extracting predetermined regular coffee. The unit 30 is moved rightward. At this time, the beverage outflow hole 33e provided in the piston rod 33d of the second piston 33 is located on the left side of the flow path switching member 51, as shown in FIG. 11, and the first extraction flow path is formed. Has been. Further, the first piston 32 moves in the right direction together with the frame 31, so that the right end portion of the piston rod 32 c comes into contact with the raw material compression member 60. Thereby, a biasing force in the left direction of the raw material compression spring 61 is applied to the first piston 32, and the first piston 32 resists the biasing force in the right direction of the piston biasing spring 36. The material A is compressed between itself and the second piston 33. Further, the scraper 72 moves to the right side while contacting the left inner surface of the frame 31. At this time, the rotation of the scraper 72 is restricted by the frame 31, and the raw material waste discharge shaft 71 rotates idly with respect to the scraper 72.

  After the rotation of the drive shaft 13 is stopped, a small amount of hot water for steaming is supplied into the cylinder 20 through the hot water supply pipe 40 and the hot water supply passage 32b of the first piston 32, and then the hot water for steaming is supplied. After a predetermined time has elapsed, a predetermined amount of hot water is pumped into the cylinder 20 to extract the beverage. The beverage extracted in the cylinder 20 is filtered by the filter 33b of the second piston 33, and then flows through the extraction flow path 33c of the second piston 33 and is discharged into the extraction pipe 50 from the beverage outflow hole 33e. Then, it flows through the extraction tube 50 and is injected from the nozzle 6 into the cup. At this time, the pressure in the cylinder 20 to which hot water is supplied is 0.1 MPa to 0.3 MPa or less.

  After extracting the beverage, as shown in FIG. 12, the drive shaft 13 is rotated clockwise as viewed from the left side, and the piston unit 30 is moved until the hot water supply plate 32 d of the first piston 32 moves to the left end of the cylinder 20. Move to the left. At this time, since the first piston 32 is urged rightward with respect to the frame 31 by the piston urging spring 36, the hot water supply plate 32d of the first piston 32, the filter 33b of the second piston 33, The interval becomes larger than that at the time of beverage extraction. Further, the scraper 72 is restricted in rotation by the rotation restricting portion 22 of the cylinder 20, and moves to the left when the scraper moving portion 31 b of the frame 31 comes into contact. When the scraper 72 moves leftward to a position that passes through the rotation restricting portion 22, as shown in FIG. 13, the scraper 72 is released from the restriction of rotation and rotates together with the raw material waste discharge shaft 71, as shown in FIG. Then, the scraper body 72a moves along the left end of the cylinder 20 and wipes down the raw material A ′ downward. As a result, the raw material soot A ′ that has been wiped down by the scraper 72 is recovered to the raw material soot recovery unit via the raw material soot discharge port 11.

  After discharging the raw material A ′, the drive shaft 13 is rotated counterclockwise when viewed from the left side, and the piston unit 30 is moved to the right until the first piston 32 and the second piston 33 are moved to the standby positions, respectively. The beverage is extracted and the beverage extraction operation is completed. At this time, the scraper 72 rotates together with the raw material discharge shaft 71 and returns to the standby posture, but is also returned to the standby posture by the scraper guide portion 73 provided on the frame 31 that moves in the right direction. That is, as shown in FIG. 15, the scraper guide portion 73 moves in the right direction while coming into contact with the extending portion 72 j provided on the second cylindrical member 72 c of the scraper 72. Accordingly, as shown in FIG. 16, the scraper 72 moves upward at the leading end side when the extending portion 72j is pushed down, and assumes a standby posture as shown in FIG.

  In the case of extracting espresso coffee, first, coffee beans for espresso are taken out of the canister 2b and ground into a powder form by the mill 3, and the raw material A (6 grams in this case) is supplied to the cylinder 20 through the raw material inlet 21. In.

  Next, the motor 15 is driven to rotate the drive shaft 13 counterclockwise as viewed from the left side, and the piston unit 30 is moved to the right until the second piston 33 moves to a position for extracting a predetermined espresso coffee. Let At this time, the beverage outflow hole 33e provided in the piston rod 33d of the second piston 33 is located between the seal rings 51b of the flow path switching member 51, and a second extraction flow path is formed. . Further, the first piston 32 moves in the right direction together with the frame 31, so that the right end portion of the piston rod 32 c comes into contact with the raw material compression member 60. Thereby, a biasing force in the left direction of the raw material compression spring 61 is applied to the first piston 32, and the first piston 32 resists the biasing force in the right direction of the piston biasing spring 36. The material A is compressed between itself and the second piston 33.

  After the rotation of the drive shaft 13 is stopped, a small amount of hot water for steaming is supplied into the cylinder 20 through the hot water supply pipe 40 and the hot water supply passage 32b of the first piston 32, and then the hot water for steaming is supplied. After a predetermined time has elapsed, a predetermined amount of hot water is pumped into the cylinder 20 to extract the beverage. The beverage extracted in the cylinder 20 is filtered by the filter 33b of the second piston 33, and then flows through the extraction flow path 33c of the second piston 33 from each of the beverage outflow holes 33e. It is discharged between the seal rings 51b, flows through the outer periphery of the flow path switching member 51 through the communication hole 51c, is discharged into the extraction pipe 50, flows through the extraction pipe 50, and is injected from the nozzle 6 into the cup. . At this time, the pressure in the cylinder 20 to which hot water is supplied is about 0.9 MPa.

  After the beverage has been extracted, the drive shaft 13 is rotated clockwise as viewed from the left side in the same manner as the regular coffee extraction, and the raw material slag A ′ is recovered from the raw material slag discharge plate 11 by the raw material slag discharge plate 14b. Pay off to the department.

  After discharging the raw material A ′, the drive shaft 13 is rotated in one circumferential direction, and the piston unit 30 is moved rightward until the first piston 32 and the second piston 33 are moved to the standby positions, respectively. The extraction operation of is terminated.

  In addition, when extracting beverages in large cups, or when extracting beverages to be poured into multiple cups at the same time, when the amount of beverages to be extracted at a time is large, the amount of regular coffee that corresponds to the amount of beverage extracted Alternatively, coffee beans for espresso coffee are put into the cylinder 20 as the raw material A, and the second piston 33 is moved to a position for extracting regular coffee or espresso coffee, respectively, to extract a beverage.

  As described above, according to the beverage extractor of the present embodiment, the raw material lees A ′ that are provided so as to move along the outer surface of the left end portion of the cylinder 20 and are pushed out from the left end portion of the cylinder 20 are removed. Since the raw material slag discharge mechanism 70 for scraping off by the scraper 72 is provided, the raw material slag A ′ can be scraped off without moving the cylinder 20, and the space for moving the cylinder 20 is not required. It becomes possible to achieve downsizing.

  Further, since the raw material soot discharge mechanism 70 is interlocked with the drive shaft 13, it is possible to reduce the manufacturing cost without requiring a separate power source for driving the raw material soot discharge mechanism 70. . Further, since a space for a power source for driving the raw material slag discharge mechanism 70 is not required, the apparatus can be reduced in size.

  In addition, the raw material soot discharge mechanism 70 includes a raw material soot discharge shaft 71 that rotates in conjunction with the rotation of the drive shaft 13, and the raw material soot discharge shaft 71 idles when a force greater than a predetermined magnitude is applied. When the above force is applied, the scraper 72 is connected to the raw material soot discharge shaft 71 so as to move in the direction of the central axis of the raw material soot discharge shaft 71 and rotates with the raw material soot discharge shaft 71 to perform the discharging operation of the raw material soot A ′. Therefore, the raw material soot discharging mechanism 70 having a simple structure can be configured, and the manufacturing cost can be reduced.

  In addition, since the scraper 72 is rotated from the posture at the end of the discharge operation of the raw material rod A ′ by the movement of the piston unit 30 to the standby posture, the raw material rod discharge shaft 71 and the scraper are caused by the aging of the torsion spring 72i. 72, the scraper 72 can be reliably rotated from the posture at the end of the discharging operation of the raw material A ′ to the standby posture, and the scraper 72 is connected to the cylinder 20 and the second It is possible to prevent problems such as being caught between the piston 33 and the piston 33.

  Also, an extension part 72j provided on the second cylindrical member 72c of the scraper 72 and a scraper guide part provided on the frame 31 and rotating the scraper 72 in the standby posture direction by contacting the extension part 72j. 73, the mechanism for rotating the scraper 72 to the standby position can be configured with a simple structure, since the posture at the end of the discharging operation of the raw material slag A ′ is rotated. Reduction can be achieved.

Schematic block diagram of a beverage extraction system showing an embodiment of the present invention Top view of beverage extractor Plan sectional view of beverage extractor AA 'sectional view of FIG. BB 'sectional view of FIG. CC 'sectional view of FIG. Perspective view of raw material waste discharge mechanism Disassembled perspective view of raw material waste discharge mechanism Front sectional view of the vending machine showing the operation of the beverage extractor Front sectional view of the vending machine showing the operation of the beverage extractor Front sectional view of the vending machine showing the operation of the beverage extractor Front sectional view of the vending machine showing the operation of the beverage extractor Front sectional view of the vending machine showing the operation of the beverage extractor Front sectional view of the vending machine showing the operation of the beverage extractor Front sectional view of the vending machine showing the operation of the beverage extractor Side cross-sectional view of vending machine showing operation of beverage extractor Front sectional view of the vending machine showing the operation of the beverage extractor

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Beverage extractor, 10 ... Cylinder base, 13 ... Drive shaft, 20 ... Cylinder, 30 ... Piston unit, 31 ... Frame, 32 ... 1st piston, 33 ... 2nd piston, 70 ... Raw material bowl discharge mechanism, 71 ... Raw material soot discharge shaft, 72 ... Scraper, 72a ... Scraper body, 72b ... First cylindrical member, 72c ... Second cylindrical member, 72d ... Shaft insertion part, 72e, 72f, 72g ... Connection part, 72h ... connecting shaft, 72i ... torsion spring, 72j ... extension part, 73 ... scraper guide part, A ... raw material, A '... raw material bowl.

Claims (6)

A cylinder having an opening at at least one end in the central axis direction, a piston provided so that it can be inserted into and removed from the opening, and a raw material squeezing means capable of extruding the raw material slag in the cylinder to the outside of the opening. In the beverage extractor
Beverage extraction characterized by having a raw material slag discharge mechanism that is provided so as to move along the outer surface of the opening of the cylinder and that squeezes out the raw material squeezed out of the cylinder from the opening by the raw material squeezing means Machine. A drive shaft for moving the piston in the direction of the central axis of the cylinder;
The beverage brewing machine according to claim 1, wherein the raw material koji discharging mechanism is configured to be interlocked with rotation of the drive shaft. The raw material soot discharge mechanism comprises a raw material soot discharge shaft that rotates in conjunction with the rotation of the drive shaft, and a raw material soot discharge member that performs a raw material soot discharge operation by rotating together with the raw material soot discharge shaft,
When a force greater than a predetermined size is applied to the material slag discharge member, the material slag discharge shaft rotates idly, and when a force greater than a specified size is applied, the material slag discharge is moved so as to move in the central axis direction of the material slag discharge shaft. The beverage extractor according to claim 2, wherein the beverage extractor is connected to a shaft. The raw material soot discharge mechanism comprises a raw material soot discharge shaft that rotates in conjunction with the rotation of the drive shaft, and a raw material soot discharge member that performs a raw material soot discharge operation by rotating together with the raw material soot discharge shaft,
When the rotation of the raw material waste discharge member is restricted, the raw material waste discharge shaft rotates idly with respect to the raw material waste discharge member, and a force greater than a predetermined magnitude in the direction of the central axis of the raw material waste discharge shaft is applied to the raw material waste discharge member. 3. The beverage extractor according to claim 2, wherein the raw material lees discharge member is connected to the raw material lees discharge shaft so that the raw material lees discharge member moves in the central axis direction of the raw material lees discharge shaft. The beverage extractor according to claim 3 or 4, further comprising a posture returning mechanism for rotating the raw material slag discharge member from a posture at the end of the raw material sachet discharging operation to a standby posture by the movement of the piston. The posture return mechanism includes: an extension portion provided on the raw material slag discharge member side; and a guide portion provided on the piston side that rotates the raw material slag discharge member in the standby posture direction by contacting the extension portion. The beverage extractor according to claim 5, wherein the beverage extractor is configured.

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