JP4165891B2 - Beverage extractor - Google Patents

Description

  The present invention relates to a beverage extraction apparatus that extracts a beverage from an extraction raw material.

2. Description of the Related Art Conventionally, for example, in a beverage extraction device that extracts espresso coffee, coffee powder is supplied onto a lower piston in a cylinder, and the upper piston is lowered to enter the cylinder, and the cylinder is interposed between the lower piston and the upper piston. The coffee powder inside is compressed, and the espresso coffee extract is extracted through hot water of a predetermined pressure through the compressed coffee powder. After extraction, the upper piston is raised from the cylinder, the upper surface of the lower piston is raised to a position that is flush with the upper surface of the cylinder, and the scraper is moved onto the lower piston to discharge the extracted raw material. (For example, refer to Patent Document 1).
JP 2003-299576 A (page 3, FIG. 1-2)

  By the way, the upper and lower pistons are each provided with an O-ring for ensuring the sealing with the cylinder, and the lower piston is provided with a filter that captures the extracted raw material and passes the beverage. These O-rings and filters are consumables and need to be replaced.

  To replace the O-ring and filter, it is necessary to remove the upper and lower pistons, but these pistons are often difficult to remove. In particular, the lower piston, which is always located in the cylinder, needs to be removed from the cylinder. Therefore, it is often necessary to disassemble the frame and mechanism, which makes it difficult to remove the lower piston and troublesome replacement of consumables. There is a problem that takes.

  The present invention has been made in view of these points, and an object thereof is to provide a beverage extraction device that can easily remove a piston from between a pair of frames without disassembling a pair of frames, an extraction mechanism, or the like. And

Beverage extracting apparatus 請 Motomeko 1 described, a pair of frames coupled together in a spaced apart facing state, is movably supported in the vertical direction between the upper and lower directions of the pair provided in the opening to the tubular frame A lower piston having a cylinder, a lower piston portion located in the cylinder and a lower piston support portion supported between the pair of frames, an upper piston portion facing above the lower piston, and the pair of frames An upper piston having an upper piston support portion disposed so as to be movable in the vertical direction between the upper piston and the cylinder in the initial state before starting the beverage extraction operation, and the upper surface of the cylinder lowered Receiving the extracted raw material to the upper surface area of the lower piston and with the extracted raw material after extraction in a state where the surface is flush with the upper surface of the lower piston Extracting the raw material with permit the discharge, during the beverage extraction operation to accommodate the extraction raw material is received in an upper surface area of the lower piston by elevated and the upper piston downward in the cylinder between the lower piston and an upper piston in the cylinder an extraction mechanism back to the initial state after extracting the beverage through water in, is supported between the pair of frames, already extracted raw material from the top surface area of the lower piston supplies extracted material to the upper surface area of the lower piston and extracting the raw material supply and discharge mechanism for discharging, provided on the pair of frames, you can move the extractor and extracted raw material supply and discharge mechanism and the mechanism for the beverage extracting operation, the vertical direction from the opposed inner surfaces of the pair of frame with projecting, upper piston support portion of the upper piston is detachably attached by a locking tool, this And the mechanical portion of the upper piston mounting portion to permit removal of said upper piston from between the pair of frames by the release of the attachment by stop being coupled to the integrally in a frame shape from the opposing inner surfaces of the pair of frame A guide frame that protrudes and guides movement of the cylinder in the vertical direction within the frame, and a lower piston support portion of the lower piston is detachably engaged in the frame; provided at the lower part, the lower piston attachment portion for detachably supporting wearing lower piston support portion of the lower piston engaged in the guide frame, at the upper side of the lower piston attachment portion of the guide frame A part of the guide frame is cut out so that the lower piston support portion can be inserted into and out of the guide frame, and the lower piston support portion is inserted out of the guide frame. Thus, an insertion portion that allows the lower piston to be removed from between the pair of integrally connected frames is provided.

Beverage extracting apparatus 請 Motomeko 2 wherein, in the beverage extraction device according to claim 1, further comprising a stop for stopping detachably a part of the mechanism to the frame, the stop, under the lower guide frame it is obtained by also used as a holder for holding the lower piston support portion of the lower piston against the side piston attachment portion.

According to the beverage extraction device 請 Motomeko 1, fastener upper piston support portion of the upper piston to the upper piston attachment portion of the mechanical part from the opposing inner surfaces projecting to be movable in the vertical direction of the pair of frame It is possible to remove the upper piston from between the pair of frames that are integrally connected by releasing the attachment with this locking tool, and the guides that protrude from the opposing inner surfaces of the pair of frames The lower piston support part of the lower piston is supported by the lower piston mounting part in the lower part of the frame, and the lower piston support part is inserted into the guide frame through the insertion part provided above the lower piston attachment part of the guide frame. permitting removal of the lower piston from between the pair of frames are coupled together by inserting the outside without disassembling the like pair of frames and extraction mechanism, one It can be removed upper piston and lower piston easily from between the frames.

According to the beverage extraction device 請 Motomeko 2 wherein, in addition to the effects of the beverage extracting apparatus according to claim 1, a stop for stopping the part of the mechanism to the frame, the lower for the lower piston attachment portion Since it is also used as a holder for holding the lower piston support portion of the piston , a dedicated holder is not required, and the structure can be simplified.

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

  The figure shows a beverage extraction unit 12 of a beverage extraction device 11 for extracting espresso coffee, for example. This beverage extraction unit 12 is detachably mounted from the front side which is the operation surface of the product to the main body unit of the beverage extraction device 11 installed on the product side such as a beverage vending machine or a tea machine. A driving force is transmitted from the unit side to perform a beverage extraction operation. Note that one surface of the beverage extraction unit 12 corresponding to the front side of the product is referred to as a front surface 12a, the left side is referred to as the left side, the right side is referred to as the right side, and the side opposite to the front surface 12a is referred to as the rear side.

  The beverage extraction unit 12 includes a frame body 24 having a pair of frames 21 and 22 and a plurality of shaft-like connecting portions 23 that integrally connect the frames 21 and 22. An extraction mechanism 25 and an extracted raw material supply / discharge mechanism 26 are disposed between the inside of the pair of frames 21 and 22, and the extraction mechanism 25 and the extracted raw material supply / discharge mechanism 26 are operated in conjunction with each of the frames 21 and 22. A mechanism unit 27 is provided.

  Next, the extraction mechanism 25 includes a cylindrical cylinder 31 supported between the pair of frames 21 and 22 so as to be movable in the vertical direction, an upper piston 32 that moves in the vertical direction with respect to the cylinder 31, and a cylinder 31. It has a lower piston 33 and the like. In the initial state shown in FIG. 11, the upper surface of the lower piston 33 is located between the upper piston 32 and the cylinder 31 separated vertically and the upper surface of the lowered cylinder 31 is flush with the upper surface of the lower piston 33. An extraction raw material receiving / discharging part 34 is formed in the region, and an extraction part 35 is formed in the cylinder 31 by the rising of the cylinder 31 and the lowering of the upper piston 32 during the beverage extraction operation shown in FIGS.

  On both sides of the cylinder 31, there are a slide portion 37 that engages with the frames 21 and 22 on both sides so as to be movable in the vertical direction, a shaft portion 38 that penetrates into the frames 21 and 22 and engages with the mechanism portion 27, A roller 39 that is rotatably attached to the shaft portion 38 and engages with the frames 21 and 22 on both sides so as to be movable in the vertical direction is provided. A guide frame 40 is engaged with the inner surfaces 21a and 22a of the pair of frames 21 and 22 so that the slide portion 37 and the roller 39 of the cylinder 31 engage with each other so as to be movable in the vertical direction. An opening 41 through which the shaft portion 38 passes is formed along the vertical direction.

  A guide base portion 42 is formed on the upper surface of the cylinder 31, and an extraction raw material receiving surface 43 for receiving the extracted raw material is formed on the front upper surface which is one end side of the guide base portion 42, which is the other end side of the guide base portion 42. A discharge chute 44 is formed on the rear upper surface so as to be inclined downward so as to guide the extracted raw material downward.

  Further, the upper piston 32 has an upper piston portion 51 that can advance and retreat from above in the cylinder 31, and an upper piston support portion 52 that detachably supports the upper piston portion 51 to the mechanism portion 27.

  An O-ring 53 that is in close contact with the inner peripheral surface of the cylinder 31 is detachably mounted around the upper piston portion 51. A cylindrical rod portion 54 projects from the upper surface of the upper piston portion 51, and an inflow hole 55 through which hot water flows is formed inside the upper piston portion 51 and the rod portion 54. A filter 56 through which hot water sent through the inflow hole 55 passes is detachably attached to the lower surface of the upper piston portion 51. A hose joint 57 communicating with the inflow hole 55 is attached to the upper portion of the rod portion 54. One end of a hose 58 is attached to the hose joint 57, and the other end of the hose 58 is connected to a connection joint 59 disposed on the rear surface of one frame 21. The connecting joint 59 is automatically connected to the connecting joint of the hot water supply device on the main body unit side by attaching the beverage extraction unit 12 to the main body unit from the rear surface side, so that hot water can be supplied.

  The upper piston support portion 52 supports the rod portion 54 so as to be slidable in the vertical direction. The upper piston support portion 52 is urged downward by a spring 60 interposed between the upper piston support portion 52 and the upper piston portion 51. ing. The upper piston support portion 52 is provided with an engaging portion 61 that protrudes toward the frames 21 and 22 on both sides. The engaging portions 61 on both sides are detachably connected to the upper piston attaching portion 63 of the mechanism portion 27 that is slidable in the vertical direction from the openings 62 of the inner surfaces 21a and 22a of the frames 21 and 22 on both sides. At the same time, these upper piston attaching portions 63 are detachably attached with screws 64 as locking tools.

  The lower piston 33 includes a lower piston portion 71 disposed in the cylinder 31, and a lower piston support portion for detachably attaching the lower piston portion 71 to the frames 21 and 22 on both sides in a fixed position. Has 72.

  An O-ring 73 that is in close contact with the inner peripheral surface of the cylinder 31 is detachably mounted around the lower piston portion 71, and a filter 74 that filters the extract is detachably attached to the upper surface of the lower piston portion 71. Yes. A cylindrical rod portion 75 projects from the lower surface of the lower piston portion 71. Inside the lower piston portion 71 and the rod portion 75, there is an outflow hole 76 through which the extract filtered by the filter 74 flows downward. An adjusting valve 77 is formed in the outflow hole 76 to adjust the outflow amount of the extract.

  The lower piston support part 72 is provided at the lower part of the rod part 75 and has an engaging part 78 protruding from the lower part of the rod part 75 toward the frames 21 and 22 on both sides. The engaging portions 78 on both sides engage with the lower portions of the guide frames 40 of the frames 21 and 22 on both sides and are detachably attached. The lower part in the guide frame 40 is configured as a lower piston mounting part 79 that detachably supports the lower piston support part 72 of the lower piston 33, and is positioned above the lower piston mounting part 79 of the guide frame 40. An insertion portion 80 through which the lower piston support portion 72 can be inserted is notched. Further, a holding receiving portion 81 is formed to project from the side portion of the engaging portion 78 of the lower piston support portion 72.

  Next, the extracted raw material supply / discharge mechanism 26 is connected to the guide base part 42 of the cylinder 31 in a horizontal direction corresponding to the direction connecting the extracted raw material receiving surface 43 side of the guide base part 42 and the rear discharge chute part 44. The slide member 91 is slidably attached in the direction. A holder portion 92 is formed on the front side of the slide member 91 so as to be slidable on the upper surface of the guide base portion 42. A pair of arcuate holder bodies 93 are provided at both side positions of the holder portion 92. They are attached to each other so that they can be opened and closed. The pair of holder bodies 93 are urged in a closing direction by urging means such as a spring (not shown).

  In a state where the pair of holder bodies 93 is closed, the pair of holder bodies 93 and the holder portion 92 form a cylindrical extraction raw material receiving portion 94. The inner diameter of the extraction raw material receiving portion 94 is substantially the same as the inner diameter of the cylinder 31. The same upper piston 32 can be inserted. A concave arc-shaped discharge guide portion 95 for pushing and discharging the peripheral surface of the extracted raw material A2 of the extracted raw material receiving and discharging portion 34 is formed on the outer surface on the front end side of the pair of holder bodies 93.

  A frame portion 96 is formed on the rear side of the slide member 91, and the extraction raw material receiving and discharging portion 34 is extracted together with the discharge guide portions 95 of the pair of holder bodies 93 projecting from the inner surfaces of both sides of the frame portion 96 onto the guide base portion 42. A discharge guide portion 97 for discharging the used raw material A2 is formed.

  Then, the extracted raw material A1 is received on the extracted raw material receiving surface 43 of the guide base part 42 and the inside of the holder 92 and the pair of holder bodies 93 receives the extracted raw material A1 and moves the slide member 91 to the extracted raw material receiving and discharging part 34. It is configured as a supply unit 98 to supply, and the discharge guide part 95 of the pair of holder bodies 93 and the discharge guide part 97 of the frame part 96 push the extracted raw material A2 from the extracted raw material receiving / discharge part 34 to the discharge chute part 44 side. The discharge unit 99 is configured to discharge. The extraction raw material A1 is, for example, coffee powder obtained by grinding coffee beans.

  Long guide grooves 100 are formed along the vertical direction on both front side surfaces of the slide member 91, and an engagement shaft (not shown) at one end of each of the pair of levers 101 is engaged with the guide grooves 100 so as to be movable in the vertical direction. Has been. The other end of each lever 101 is fitted into a support shaft 102 projecting from a position near the lower piston mounting portion 79 of the guide frame 40 on the inner surfaces 21a, 22a of the frames 21, 22 on both sides, and is pivotable. It is supported. The outer surface of each lever 101 in the vicinity of one end side passes through an opening 103 formed in an arc shape around the support shaft 102 in the inner surfaces 21a and 22a of the frames 21 and 22 on both sides, and is engaged with the mechanism portion 27, respectively. A working shaft 104 to be joined is rotatably mounted.

  The lever 101 fitted into the support shaft 102 is retained by a snap pin 105 as a stopper attached through the support shaft 102. The tip of the snap pin 105 attached to the support shaft 102 engages with the holding receiving portion 81 of the lower piston support portion 72 disposed in the lower piston mounting portion 79 located in the vicinity to engage the lower piston support portion. The holder is configured to hold 72 on the lower piston mounting portion 79.

  Further, an extraction material chute body 107 that can be vertically expanded and contracted is disposed above the extraction material receiving portion 94 of the guide base portion 42 at a position in front of the upper piston 32. Note that a predetermined amount of the extracted raw material is input and supplied to the extracted raw material chute body 107 for each beverage extraction operation from an unillustrated extracted raw material supply device installed on the product side.

  Next, the mechanism portion 27 has cam gears 111 disposed inside the frames 21 and 22 on both sides, and both ends of the interlocking shaft 112 rotatably mounted between the frames 21 and 22 on the cam gears 111 on both sides. Are engaged with each other, and the cam gears 111 on both sides rotate together. The cam gears 111 on both sides are engaged with the shaft portion 38 of the cylinder 31, the upper piston mounting portion 63, and the operating shaft 104 of the lever 101, respectively. Then, by one rotation from the initial position of the cam gear 111, one beverage extraction operation is performed by the extraction mechanism 25 and the extraction raw material supply / discharge mechanism 26.

  A gear 113 faces the rear surface side of one frame 21, and the beverage extraction unit 12 is attached to the main body unit from the rear surface side, so that the gear 113 automatically meshes with the driving gear of the driving device on the main body unit side. A driving force is transmitted to the mechanism unit 27 of the extraction unit 12.

  Further, as shown in FIGS. 8 to 10, a tray body 121 for receiving the extracted raw material A2 that has been deformed and scattered when the extracted raw material receiving and discharging portion 34 is discharged is attached to and detached from the bottom surface between the frames 21 and 22 on both sides. Arranged to be possible.

  Further, as shown in FIG. 14, a cup C that receives the extracted beverage is disposed below the outflow hole 76 of the lower piston 33 in the main body unit in which the beverage extraction unit 12 is disposed. A nozzle 125 that suppresses the generation of bubbles when beverage is poured into the cup C is disposed below the outflow hole 76 of the lower piston 33. The nozzle 125 has a meandering flow path 126, and the beverage flowing out from the outflow hole 76 of the lower piston 33 is poured into the cup C through the meandering flow path 126, so that the beverage flows out of the outflow hole 76 of the lower piston 33. Generation of bubbles is suppressed as compared to when it is poured directly into the cup C. The nozzle 125 has a bubble-free position below the outflow hole 76 of the lower piston 33 and a position with bubbles evacuated from the lower side of the outflow hole 76 of the lower piston 33 by a manual or motor-driven drive mechanism. It is possible to move between and with or without bubbles.

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

  A main unit is installed in the product, and a beverage extraction unit 12 is attached to the main unit. When the beverage extraction unit 12 is mounted, one gear 113 can mesh with the drive gear of the main unit to transmit the driving force, and the connecting joint 59 can be connected to the connecting joint of the main unit to supply hot water. become.

  The main body unit is formed with a cup arrangement portion in which a cup C for receiving an extracted beverage is arranged below the lower piston 33 of the beverage extraction unit 12, and is discharged through a discharge chute 44 to a rear position of the cup arrangement portion. A collection unit 131 that receives and collects the extracted raw material A2 is detachably disposed.

  And a drink extraction operation | movement is demonstrated.

  As shown in FIG. 11, in the initial state of the beverage extraction unit 12, that is, in the state where the rotational position of the cam gear 111 is at the initial position, the cylinder 31 is lowered and the upper surface of the cylinder 31 is flush with the upper surface of the lower piston 33. The upper piston 32 is raised, and the extracted material receiving / discharging part 34 is formed on the lower piston 33 below the upper piston 32. The slide member 91 of the extracted raw material supply / discharge mechanism 26 is moved in the front direction of the guide base portion 42 provided with the extracted raw material receiving surface 43 of the cylinder 31, and a pair of holders is provided on the extracted raw material receiving surface 43 of the slide member 91. The body 93 is closed to form a cylindrical extraction raw material receiving portion 94. Accordingly, the supply unit 98 formed on the extracted raw material receiving surface 43 and inside the extracted raw material receiving unit 94 is disposed below the extracted raw material chute body 107, and is a discharge unit configured by the outer surfaces of the pair of holder bodies 93 99 is opposed to the extracted raw material receiving and discharging unit 34. In addition, the extracted raw material A2 at the previous beverage extraction operation is arranged in the extracted raw material receiving and discharging unit 34.

  At the start of the beverage extraction operation, first, an extraction raw material A1 such as coffee powder is supplied to the extraction raw material chute body 107 from an extraction raw material supply device (not shown) on the product side, and the extraction raw material receiving surface 43 is supplied through this extraction raw material chute body 107. It is accommodated in the supply part 98 above and inside the extraction raw material receiving part 94.

  Thereafter, the driving force from the drive mechanism of the main unit is transmitted to the cam gear 111 through the gear 113 of the beverage extraction unit 12, and one rotation accompanying the beverage extraction operation of the cam gear 111 is started.

  At the initial rotation of the cam gear 111, as shown in FIG. 12, the slide member 91 moves to the rear side of the guide base portion 42 via the action shaft 104 and the lever 101 engaged with the cam gear 111 and is extracted by the discharge portion 99. The extracted raw material A2 located in the raw material receiving / discharging unit 34 is pushed and discharged to the lower recovery unit 131 through the discharge chute 44, and the extracted raw material A1 in the supply unit 98 is moved to the extracted raw material receiving / discharging unit 34. The slide member 91 moves until the center of the extraction raw material receiving portion 94 coincides with the center of the cylinder 31.

  When the discharged raw material A2 located in the extracted raw material receiving and discharging section 34 is pushed by the discharge section 99 and discharged to the discharge chute section 44, the discharge guide section 95 of the pair of holder bodies 93 and the discharge guide section 97 of the frame section 96 are extracted raw materials. Since the extracted raw material A2 is pushed from the receiving discharge part 34 to the discharge chute part 44 side of the guide base part 42 and discharged, the shape of the extracted raw material A2 is not easily collapsed and can be discharged without being scattered. In addition, even if the shape of the extracted raw material A2 collapses and is scattered on the guide base part 42, the discharge guide part 95 of the pair of holder bodies 93 and the discharge guide part 97 of the frame part 96 are on the guide base part 42. The extracted raw material A2 can be pushed and discharged to the discharge chute 44 side. Further, even if the extracted raw material A2 scattered from the guide table 42 falls, the extracted raw material A2 can be received by the tray body 121 and prevented from entering the cup C.

  Subsequently, in the middle period of rotation of the cam gear 111, as shown in FIG. 13, the cylinder 31 that engages the cam gear 111 via the shaft portion 38 rises, and the upper piston 32 engages in the cylinder 31, Between the upper piston 32 and the lower piston 33, a room (extraction chamber) of the extraction unit 35 containing the extraction raw material A1 is formed. When the cylinder 31 is raised, the slide member 91 is also raised integrally, and the extraction material chute body 107 is pushed up and contracted by the slide member 91.

  As shown in FIG. 14, the upper piston 32 descends via the upper piston mounting portion 63 that engages with the cam gear 111, and compresses the extraction raw material A <b> 1 with the lower piston 33.

  At the timing of compressing the extraction raw material A1, hot water of a predetermined pressure is supplied from the hot water supply device on the product side, the connection joint of the main body unit, the connection joint 59 of the beverage extraction unit 12, the hose 58, the hose joint 57, and the upper piston 32. It is supplied to the extraction unit 35 through the inflow hole 55. The extracted liquid, that is, the beverage extracted while passing hot water of a predetermined pressure through the extracted raw material A1, is filtered by the filter 74 of the lower piston 33, flows downward through the outlet hole 76, and poured into the cup C. Can be removed. At this time, depending on the diameter of the regulating valve 77, the extraction time and pressure can be changed to adjust the taste and aroma of the beverage.

  Further, when selecting the presence of foam according to the user's preference, the nozzle 125 is retracted from the lower side of the outflow hole 76 of the lower piston 33 to the side, so that the outflow hole 76 of the lower piston 33 is removed. The beverage is poured directly into cup C. On the other hand, when selecting the absence of foam, by positioning the nozzle 125 below the outflow hole 76 of the lower piston 33, the beverage flowing out from the outflow hole 76 of the lower piston 33 is passed to the cup C through the meandering flow path 126. Pouring and suppressing foam generation.

  Then, the slide member 91 starts moving so as to return toward the front side of the guide base portion 42, and the pair of holder bodies 93 abut against the upper piston 32, but the pair of holder bodies 93 resists the spring bias. Then, the movement of the slide member 91 is continued without any trouble.

  Subsequently, in the later stage of rotation of the cam gear 111, the cylinder 31 descends and returns to the initial position, the upper piston 32 rises and returns to the initial position, returns to the initial state shown in FIG. 1, and completes one extraction operation. To do.

  Next, replacement of the O-ring 53 and the filter 56, which are consumables for the upper piston 32, will be described with reference to FIGS.

  By removing the screw 64 that attaches the upper piston support part 52 to the upper piston attachment part 63 and remove the upper piston support part 52 from the lower part of the upper piston attachment part 63, the upper piston 32 is removed from between the frames 21, 22 on both sides. It can be removed upward.

  In order to attach the upper piston 32 after replacing the O-ring 53 and the filter 56 with respect to the removed upper piston 32, the upper piston 32 is inserted between the frames 21 and 22 on both sides, and the upper piston support portion The upper piston support portion 52 is fixed to the upper piston mounting portion 63 by engaging 52 with the lower portion of the upper piston mounting portion 63 and screwing the screw 64 to the upper piston support portion 52 through the upper piston mounting portion 63.

  Next, replacement of the O-ring 73 and the filter 74, which are consumables for the lower piston 33, will be described with reference to FIGS.

  As shown in FIG. 2, the snap pin 105 is removed from the support shaft 102, and the holding of the lower piston support portion 72 to the lower piston mounting portion 79 by the snap pin 105 is released.

  As shown in FIG. 3, the lower piston support portion 72 is raised along the guide frame 40 to the height of the insertion portion 80 that is notched in the guide frame 40.

  As shown in FIG. 4, the lower piston support portion 72 is moved from the inner side of the guide frame 40 to the outer side through the insertion portion 80 of the guide frame 40.

  The lower piston support portion 72 moved to the outside of the guide frame 40 is moved downward as it is to be removed downward from between the frames 21 and 22 on both sides, and the lower piston portion 71 is removed from the cylinder 31 downward. Thus, as shown in FIG. 5, the lower piston 33 can be removed downward from between the frames 21 and 22 on both sides.

  In order to attach the lower piston 33 after replacing the O-ring 73 and the filter 74 with respect to the removed lower piston 33, the lower piston 33 is inserted between the frames 21 and 22 on both sides from the lower side. The side piston portion 71 is inserted into the cylinder 31 from below.

  The lower piston support 72 is inserted between the frames 21 and 22 on both sides from below and moved from the outside to the inside of the guide frame 40 through the insertion portion 80 of the guide frame 40, and the lower piston support 72 is moved to the guide frame 40. And is engaged with the lower piston mounting portion 79.

  The snap pin 105 is attached to the support shaft 102, and the tip of the snap pin 105 is engaged with the holding receiving portion 81 of the lower piston support portion 72 disposed in the lower piston mounting portion 79, so that the lower piston support portion is engaged. 72 is held by the lower piston mounting portion 79.

  In this way, the upper piston support portion 52 of the upper piston 32 is detachably supported by the upper piston mounting portion 63 of the mechanism portion 27 protruding from the opposed inner surfaces 21a, 22a of the frames 21, 22 on both sides. Since the lower piston support 72 of the piston 33 is detachably supported by the lower piston mounting portion 79 provided on the inner surfaces 21a and 22a facing each other of the frames 21 and 22 on both sides, the frames 21 and 22 on both sides and the extraction mechanism The upper piston 32 and the lower piston 33 can be easily detached from between the frames 21 and 22 on both sides without disassembling 25 or the like.

  A guide frame 40 for guiding the vertical movement of the cylinder 31 is provided on the opposing inner surfaces 21a, 22a of the frames 21, 22 on both sides, and a lower piston mounting portion is provided at a lower portion in the guide frame 40. By providing 79, the guide frame 40 can be used for both the guide of the cylinder 31 and the support of the lower piston support 72 of the lower piston 33, the structure can be simplified, and the lower piston mounting of this guide frame 40 can be simplified. By inserting the lower piston support part 72 through the insertion part 80 provided above the part 79, the lower side between the frames 21 and 22 on both sides without disassembling the frames 21 and 22 on both sides, the extraction mechanism 25, etc. The piston 33 can be easily attached and detached.

  In addition, since the snap pin 105 that holds a part of the mechanism portion 27 to the frames 21 and 22 on both sides is also used as a holder for holding the lower piston 33 supported by the lower piston mounting portion 79, a dedicated holder is provided. There is no need and the structure can be simplified.

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

It is a perspective view in the state where one frame of a beverage extraction device showing one embodiment of the present invention was removed. It is a perspective view which shows the removal process of the lower piston of the drink extracting device following FIG. 1 same as the above. It is a perspective view which shows the removal process of the lower piston of the beverage extracting device following FIG. It is a perspective view which shows the removal process of the lower piston of the beverage extraction apparatus following FIG. 3 same as the above. It is a perspective view which shows the removal process of the lower piston of the beverage extraction apparatus following FIG. 4 same as the above. It is the perspective view seen from the rear surface side of a drink extracting device same as the above. It is the perspective view which removed the upper side piston of the drink extraction apparatus same as the above. It is the perspective view seen from the front side of a drink extractor same as the above. It is a top view which shows the standby state of the extraction raw material supply discharge mechanism of a drink extraction apparatus same as the above. It is a top view which shows the movement state to the extraction raw material supply discharge position of the extraction raw material supply discharge mechanism of a drink extraction apparatus same as the above. It is sectional drawing of the initial state of a drink extraction apparatus same as the above. It is sectional drawing which shows extraction operation | movement from the initial state of FIG. 11 of a drink extracting device same as the above. It is sectional drawing which shows the extraction operation following FIG. 12 of a drink extracting device same as the above. It is sectional drawing which shows the extraction operation | movement following FIG. 13 of a drink extracting device same as the above.

Explanation of symbols

11 Beverage extractor
21, 22 frames
25 Extraction mechanism
26 Extracted raw material supply / discharge mechanism
27 Mechanism
31 cylinders
32 Upper piston
33 Lower piston
40 Guide frame
51 Upper piston
52 Upper piston support
63 Upper piston mounting part
64 Screws as fasteners
71 Lower piston part
72 Lower piston support
79 Lower piston mount
80 Insertion section
105 Snap pins as stops and retainers
A1 Extract raw material

Claims (2)

A pair of frames connected together in a spaced-apart state
A cylinder that is provided in a cylindrical shape that opens in the vertical direction and is supported so as to be movable in the vertical direction between the pair of frames, a lower piston portion that is positioned in the cylinder, and a lower piston that is supported between the pair of frames Beverage extraction operation, comprising: a lower piston having a support portion; an upper piston portion facing above the lower piston; and an upper piston having an upper piston support portion movably disposed between the pair of frames. In the initial state before starting the operation, the upper piston and the cylinder are separated from each other up and down, and the upper surface of the lowered cylinder is flush with the upper surface of the lower piston. Allows the extraction of the extracted ingredients after extraction, and causes the cylinder to rise and the upper piston to drop during the beverage extraction operation. An extraction mechanism back to the initial state after extracting the beverage through hot water extraction material accommodates the extracted material is received in an upper surface area of the lower piston between the lower piston and an upper piston in the cylinder Te,
And extracting the raw material supply and discharge mechanism for discharging the already extracted raw material from the top surface area of the lower piston with the supported between a pair of frames, supplying raw material for extraction in the upper surface area of the lower piston,
A mechanism provided on the pair of frames, for causing the extraction mechanism and the extraction raw material supply / discharge mechanism to perform beverage extraction;
The upper piston support portion of the upper piston is detachably attached by a latching tool so as to be vertically movable from the opposed inner surfaces of the pair of frames. An upper piston mounting portion of the mechanism portion that allows removal of the upper piston from between a pair of frames connected to the frame ;
The pair of frames project from the opposing inner surfaces in a frame shape, guide the movement of the cylinder in the vertical direction within the frame, and detachably engage the lower piston support portion of the lower piston in the frame. A guide frame to be combined,
This is provided in the lower portion of the guide frame, and a lower piston attachment portion for supporting the wear can de lower piston support portion of the lower piston engaged in the guide frame,
A part of the guide frame is cut out above the lower piston mounting portion of the guide frame, the lower piston support portion can be inserted into and out of the guide frame, and the lower piston support portion is A beverage brewing apparatus comprising: an insertion portion that allows the lower piston to be removed from between the pair of frames that are integrally connected by being inserted outside the guide frame . It has a stop for stopping the part of the mechanism unit detachably on the frame, the stop, the holder for holding the lower piston support portion of the lower piston against the lower piston attachment portion of the lower guide frame The beverage extraction device according to claim 1 , wherein the beverage extraction device is also used.

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