JP6285892B2 - Beverage extractor - Google Patents

Description

  More particularly, the present invention relates to a dripper valve that opens and closes an extraction port provided at a lower end of a dripper.

  As an example of a beverage extractor having an extractor that extracts a beverage using supplied hot water, a beverage extractor (coffee maker) described in Patent Document 1 is known. In the coffee maker of Patent Document 1, an open / close valve is provided at the bottom outlet of the basket from which coffee is extracted.

  When the on-off valve is opened, coffee is poured from the basket into the jug. At that time, coffee flows from the bottom outlet to the inside of the jug through the on-off valve. As shown in FIGS. 1 and 4 of Patent Document 1, the shape of the on-off valve is generally a shape in which a member such as an umbrella bone extends radially and hemispherically from the tip of a rod-like member.

JP 2006-230617 A

  In recent years, with the diversification of consumer lifestyles, without using the liquid container attached to the beverage extractor (for example, the jug of Patent Document 1), the consumer's favorite container, for example, a cup or a mug bottle, It may be required to pour the beverage directly. In that case, since the height of the container varies, the beverage is poured into the container in a state where the container is separated from the on-off valve. Since such a situation is not considered in Patent Document 1, in the on-off valve having the above-described structure shown in Patent Document 1, the streamline of the beverage that flows downward and leaves the on-off valve is disturbed, and a part of the beverage is a container. There was a problem that the beverage that did not enter or the beverage that had fallen into the container jumped and scattered around the container.

  This invention is made | formed in view of an above-described problem, Comprising: It aims at providing the drink extractor which arranged the streamline of the drink which flows down from a dripper valve, and suppressed scattering of the drink.

  The characteristic structure of the beverage extractor according to the present invention is a beverage extractor having an extractor for extracting a beverage using supplied hot water, wherein the extractor contains the beverage extraction raw material therein and A dripper that supplies hot water to the extraction raw material, and a dripper valve that opens and closes an extraction port provided at a lower end of the dripper, the dripper valve including a core rod inserted into the extraction port, a core A plurality of spring receiving portions that extend radially from the lower end of the rod and contact one end of a spring that urges the dripper valve downward, and between the plurality of spring receiving portions on the surface of the core rod A groove portion extending from the lower end of the core rod toward the dripper along the central axis of the rod is provided, and the groove portion communicates with a beverage passage space that is a space between two adjacent spring receiving portions. It is in. According to this characteristic configuration, the groove portion extending from the lower end of the core rod toward the dripper along the central axis of the core rod is provided between the spring receiver portions, and the groove portion communicates with the beverage passage space between the spring receiver portions. By doing so, the beverage that has flowed out from the extraction port and has flowed along the surface of the core rod is guided to the groove portion, and gathers and flows into the groove portion and the beverage passage space. If it does so, compared with the case where a groove part is not provided, the drink which collides with a spring receiving part and a streamline disturbs reduces. In other words, the flow of the beverage that flows down from the dripper valve can be adjusted by the groove, and the splash of the beverage can be suppressed.

  The further characteristic structure of the drink extractor which concerns on this invention exists in the point whose depth in the lower end of the said groove part is larger than the depth in an upper end. According to this characteristic configuration, since the depth of the groove portion at the lower end is deeper than that at the upper end, the beverage is drawn to a deeper position at the lower end, so that the beverage that has flowed along the surface of the core rod is transferred to the groove portion. The action leading to becomes stronger. Therefore, the effect | action which arranges the streamline of the drink by a groove part becomes stronger, and can further suppress scattering of a drink.

  The further characteristic structure of the drink extractor which concerns on this invention exists in the point whose width | variety in the lower end of the said groove part is larger than the width | variety in an upper end. According to this characteristic configuration, since the width of the groove at the lower end is wider than that at the upper end, more beverage is drawn into the groove at the lower end, so that the beverage that has flowed along the surface of the core rod is transferred to the groove. The leading action becomes stronger. Therefore, the effect | action which arranges the streamline of the drink by a groove part becomes stronger, and can further suppress scattering of a drink.

  A further characteristic configuration of the beverage extractor according to the present invention has a container for storing the beverage extracted by the extraction unit, and the container receives the beverage flowing out from the extraction port below the extraction port. An introduction member that leads to the inside of the container, and the introduction member includes a shaft portion that is inserted into an inlet of the container, and an umbrella-shaped portion that is provided at an upper end of the shaft portion. The opening part which penetrates a part in an up-down direction exists in the point provided. According to this characteristic configuration, since the opening is provided in the umbrella-shaped portion of the introducing member, the beverage that flows down from the dripper valve in a state where the streamline is in order can flow into the container through the opening. It becomes possible. When the opening is not provided, the beverage flows along the surface of the umbrella-shaped portion, flows down from the outer periphery of the umbrella-shaped portion, and flows into the container. Therefore, there are concerns about the scattering of the beverage and the temperature drop. Compared to this case, when the opening is provided, it is possible to further suppress the disturbance of the streamline and the scattering of the beverage until the beverage reaches the inside of the container, and in addition, it is possible to suppress the temperature decrease of the beverage. is there.

Perspective view of coffee maker Longitudinal section of the main part of the coffee maker Perspective view of dripper valve Perspective view of core rod Bottom view of dripper valve VI-VI sectional view of the core rod in FIG. Perspective view of valve member (introducing member) Illustration of coffee flow

  About the coffee maker E which is embodiment of the drink extractor which concerns on this invention, the outline | summary of the structure and operation | movement is demonstrated with reference to drawings. FIG. 1 is a perspective view showing a state where the attached server 40 is removed from the coffee maker E. FIG. FIG. 2 is a longitudinal sectional view of a main part in a state where the attached server 40 is attached to the coffee maker E, and is a longitudinal sectional view by a plane passing through the centers of the dripper valve 8 and the first beverage receiving member 51 and parallel to the XZ plane. FIG.

  In the present application, the direction in which gravity acts is −Z direction (downward), and the opposite of the downward direction is the Z direction (upward). In FIG. 2, the right direction along the plane of the page is the X direction (front), the left direction is the -X direction (rear), the front side of the page is the Y direction (left direction), and the depth direction of the page is the -Y direction (right direction). . Also, the lower side of a certain member or surface is the lower side, the upper side is the upper side, the front side is the front side, the rear side is the rear side, the left side is the left side, and the right side is the right side That's it.

  As shown in FIGS. 1 and 2, the coffee maker E has a hot water supply unit 1, a mill unit 2, an extraction unit 3, a container 4, a placement unit 5, an operation unit 6, and a housing 7 (support unit). ) And a control unit M. A placing part 5 on a flat plate is formed at the lower end of the coffee maker E, and a casing 7 as a supporting part is in contact with the outside of the placing part 5, that is, the rear side, the left side, and the right side in a top view. It is erected. The housing 7 is a box-shaped member surrounded by the front surface 7a, the back surface 7b, the top surface 7c, the right front surface 7d, and the bottom surface 7e, and supports the mill unit 2 and the extraction unit 3 above the placement unit 5. ing.

  As shown in FIG. 1, the extraction unit 3 is arranged on the upper side of the placement unit 5 and supported by the housing 7. As shown in FIG. 2, the mill unit 2 is arranged on the upper side of the extraction unit 3 and supported by the housing 7. The operation unit 6 is disposed on the right front surface 7 d of the housing 7, and the hot water supply unit 1 and the control unit M are disposed inside the housing 7. A tank 10 for storing water is disposed on the rear side of the upper portion of the housing 7. And at the time of extraction of coffee C (beverage), the container 4 is placed on the upper side of the placing part 5 and is arranged below the extracting part 3. In FIGS. 1 and 2, an attached server 40 that is an accessory of the coffee maker E is shown as the container 4.

  As shown in FIG. 2, the hot water supply unit 1 includes a tank 10, a hot water supply pipe 11, a heater 12, and a nozzle 13. The hot water supply pipe 11 is connected to the lower part of the tank 10 inside the casing 7, is bent in a U shape at the lower part of the casing 7, and extends to the uppermost part of the casing 7. The hot water supply pipe 11 again extends to the lower part of the casing 7 and curves in a U shape, and then extends to the uppermost part of the casing 7 again and is connected to the nozzle 13.

  In the hot water supply unit 1, the curved portion of the hot water supply pipe 11 described above is disposed so as to overlap, and the heater 12 is disposed so as to cover the curved portion. The hot water supply unit 1 generates heat when the heater 12 is energized, and heats the water inside the hot water supply pipe 11. In the hot water supply unit 1, hot water is sent to the nozzle 13 due to an increase in pressure of water (hot water) in the hot water supply pipe 11 due to heating, and is supplied to the extraction unit 3 through the inside of the mill unit 2. When the water in the tank 10 and the hot water supply pipe 11 runs out, the temperature of the heater 12 rises. When the control unit M detects the temperature rise, the control unit M stops energizing the heater 12.

  The mill unit 2 includes a mill case 20, a mill blade 21, and a motor 22. The mill case 20 has a passage 20c that communicates from the upper inlet 20a to the lower outlet 20b. A mill blade 21 that is rotationally driven by a motor 22 is disposed in the middle of the passage 20c. The lid 14 at the top of the housing 7 can be rotated upward about the rotation axis C1, and coffee beans are introduced from the exposed inlet 20a. The coffee beans charged in the mill case 20 are pulverized by the rotating mill blade 21 to be powdered and supplied to the extraction unit 3 through the outlet 20b. When coffee C is extracted, hot water supplied from the nozzle 13 flows from the inlet 20a to the passage 20c and is supplied from the outlet 20b to the extraction unit 3.

  The extraction unit 3 includes a holder 30 and a dripper 31, and the dripper 31 is placed on the holder 30. The holder 30 is supported by the housing 7 in a rotatable state by a right pin 30a (FIG. 1). With the holder 30 rotated and opened in the right direction, the dripper 31 is attached and detached, and the filter is attached to the dripper 31, and the coffee C is extracted when the holder 30 is rotated in the left direction and closed (FIG. 1). Do. The dripper 31 has an inlet 31 a provided in the lid 38, an extraction port 31 b provided in the lower part of the dripper 31, and an extraction space 31 c surrounded by the dripper 31 and the lid 38. The extraction port 31b is a circular hole in a top view. In the extraction unit 3, the coffee powder crushed by the mill unit 2 is accommodated in an extraction space 31c formed inside the dripper 31 from the inlet 31a. Thereafter, the extraction unit 3 supplies the hot water supplied from the hot water supply unit 1 to the extraction space 31c of the dripper 31 from the inlet 31a, extracts coffee C from the coffee beans using the hot water, and supplies it to the container 4 described later in detail. Supply.

  A dripper valve 8 (specifically, a core rod 81 described later) is inserted into the extraction port 31b of the dripper 31, and is urged downward by a spring 32a. The lever 33 is attached to the dripper 31 in a state in which the lever 33 can swing around the rotation axis C <b> 3, and the front end of the lever 33 is connected to the dripper valve 8. A cam 35 is disposed at a position behind the lever 33 in the housing 7. The rotation of the motor 34 causes the cam 35 to take two states: a separated state in which the cam 35 is separated from the lever 33, and a depressed state in which the rear end of the lever 33 is pushed down. In the separated state, the dripper valve 8 is pushed downward by the spring 32a, and the O-ring 32b blocks the extraction port 31b, so that the coffee C does not flow out of the extraction port 31b. In the pressed state, the dripper valve 8 is pushed up by the lever 33, and the coffee C flows out from the gap between the dripper valve 8 and the extraction port 31b. The coffee C that has flowed out of the dripper 31 is accommodated in the attached server 40 arranged below the extraction unit 3. In this way, the dripper valve 8 opens and closes the extraction port 31b.

  The container 4 accommodates the coffee C supplied from the extraction unit 3, and various forms such as a coffee cup and a mug bottle can be used in addition to the attached server 40 shown in FIGS. 1 and 2. The attached server 40 is a metal insulated double structure container, and includes a lever 40a, a valve member 9, and a spout 40c. The valve member 9 is urged upward by a spring (not shown).

  In a state where the attached server 40 is not attached to the coffee maker E (FIG. 1), the valve member 9 (introducing member) closes the inlet 40 d at the upper part of the attached server 40. When the attached server 40 is attached to the coffee maker E, that is, when the attached server 40 is placed on the upper side of the mounting portion 5 (FIG. 2), the rib 36 formed on the lower side of the dripper 31 pushes down the valve member 9. Thus, the inlet 40d is opened. In this state, when the dripper valve 8 of the dripper 31 is moved upward by the operation of the motor 34, the coffee C flows out from the extraction port 31b along the surface of the dripper valve 8 and falls downward. The dropped coffee C is accommodated in the attached server 40.

Hereinafter, the dripper valve 8 and the valve member 9 (introducing member), which are characteristic configurations of the coffee maker E according to the present embodiment, will be described with reference to the drawings. FIG. 3 is a perspective view of the dripper valve 8. FIG. 4 is a perspective view of the core rod 81 as viewed obliquely from below (the direction in which the −X direction, + Y direction, and + Z direction are combined). FIG. 5 is a bottom view of the dripper valve 8. FIG. 6 is a cross-sectional view of the core rod 81 taken along the line VI-VI. FIG. 7 is a perspective view of the valve member 9.

  The dripper valve 8 is a resin member, and has a core rod 81, a spring receiving portion 82, and an outer peripheral portion 83 as shown in FIGS. 3 and 4. The core rod 81 is a substantially octagonal rod-shaped body, and on its side surface, convex surfaces 81a curved in a direction away from the central axis C8 and concave surfaces 81b curved in a direction approaching the central axis C8 are alternately arranged. Has been. An annular groove 81c into which the O-ring 32b is fitted is formed on the upper portion of the core rod 81.

  The spring receiving portion 82 is a rod-shaped member, and as shown in FIG. 3 and FIG. 4, four springs radially extend from the lower end of the core rod 81 in four directions of ± X direction and ± Y direction. Yes. One end of the spring receiving portion 82 is connected to the lower end of the core rod 81, and the other end is connected to the outer peripheral portion 83. The lower surface 82 b of the spring receiving portion 82 is disposed below the lower end surface 81 d of the core rod 81. That is, the lower end surface 81 d of the core rod 81 is disposed above the lower surface 82 b of the spring receiving portion 82, so that a recess 85 is formed at the lower end of the core rod 81 on the lower surface of the dripper valve 8. As shown in FIGS. 4 and 5, a sharp end portion 82d is formed on the lower surface 82b of the spring receiving portion 82 extending in the ± X direction. The sharp end portion 82d of the spring receiving portion 82 extending in the + X direction from the core rod 81 has a tip directed in the −X direction. The sharp end portion 82d of the spring receiving portion 82 extending in the −X direction from the core rod 81 has its tip directed in the + X direction.

  When the dripper valve 8 is attached to the dripper 31, as shown in FIG. 3, the core 32 is covered with the spring 32 a and the lower end of the spring 32 a is in contact with the upper surface 82 a of the spring receiving portion 82. As shown in FIG. 2, the core rod 81 of the dripper valve 8 is inserted into the extraction port 31 b of the dripper 31 in a posture in which the spring receiving portion 82 is positioned below the extraction port 31 b. The ring 32b is fitted into the annular groove 81c. The upper end of the spring 32a contacts the lower surface of the dripper 31, and the spring 32a biases the dripper valve 8 downward. The O-ring 32b is pressed around the extraction port 31b by the urging force of the spring 32a, and the dripper valve 8 is closed.

  As shown in FIG. 3, the outer peripheral portion 83 is disposed so as to surround the periphery of the core rod 81, and one end of the spring receiving portion 82 is connected thereto. As shown in FIGS. 3 and 8, the spring receiving portion 82 is curved and extends upward from the lower end of the core rod 81, and the spring receiving portion 82 and the outer peripheral portion 83 are above the lower end of the core rod 81. Connected. The outer peripheral portion 83 is formed with an engaging portion 83a that is a cylindrical space that is open at the bottom, and a pin (not shown) formed at the tip of the lever 33 is fitted into the engaging portion 83a. . Thereby, the dripper valve 8 and the lever 33 are connected.

  As shown in FIGS. 3 and 4, four groove portions 84 are formed on the surface of the core rod 81. The groove portion 84 extends upward from the lower end of the core rod 81 toward the dripper 31 along the central axis C <b> 8 of the core rod 81, i.e., extends toward the dripper 31. The four groove portions 84 are provided below the convex surface 81 a of the core rod 81. Further, the four spring receiving portions 82 described above are provided below the concave surface 81 b of the core rod 81. Therefore, the groove portions 84 and the spring receiving portions 82 are alternately arranged, and the groove portions 84 are provided between the two spring receiving portions 82.

  As shown in FIG. 4, the groove portion 84 has a top surface 84a, a bottom surface 84b, a right side surface 84c, and a left side surface 84d. The top surface 84a is a surface that defines the upper side (+ Z direction) of the groove portion 84, and is a surface substantially parallel to the XY plane. The right side surface 84 c and the left side surface 84 d are surfaces that define the side surfaces of the groove portion 84. The right side surface 84c is a surface substantially parallel to the YZ plane and is a surface continuous with the side surface 82c of the spring receiving portion 82. The left side surface 84d is a surface substantially parallel to the XZ plane, and is similarly a surface continuous with the side surface 82c of the spring receiving portion 82. The bottom surface 84 b is a surface that defines the bottom surface of the groove portion 84, and is connected to the lower end surface 81 d of the core rod 81 at the lower end. The shape of the bottom surface 84b is curved in a shape corresponding to a part of the side surface of the cylinder whose central axis is inclined. The bottom surface 84b is formed obliquely with respect to the central axis C8, and becomes a surface that approaches the central axis C8 as it proceeds downward.

  The top surface 84 a of the groove portion 84 is disposed on the upper side (+ Z direction) of the upper surface 82 a of the spring receiving portion 82. That is, the groove portion 84 extends from the lower end of the core rod 81 to the upper side of the upper surface 82a of the spring receiving portion 82 along the central axis C8 of the core rod 81.

  4 and 5, the width w1 at the upper end (the end in the + Z direction) of the groove portion 84 and the width w2 at the lower end (the end in the −Z direction) are indicated by arrows. The width w <b> 1 at the upper end of the groove portion 84 is the width of the lower end of the convex surface 81 a of the core rod 81. The width w2 at the lower end of the groove 84 is the width w2 at the lower end of the bottom surface 84b, and is the width of the portion where the lower end surface 81d of the core rod 81 and the bottom surface 84b intersect. It is the width of the part where and intersect. The width of the groove 84 continuously increases from the upper end to the lower end, and the width w2 at the lower end of the groove 84 is larger than the width w1 at the upper end. The “width of the groove portion 84” in the present embodiment is a width when the groove portion 84 is viewed from a direction perpendicular to the central axis C8 of the core rod 81 and facing the groove portion 84.

  5 and 6, the depth d1 at the upper end (the end in the + Z direction) and the depth d2 at the lower end (the end in the −Z direction) of the groove portion 84 are indicated by arrows. The “depth of the groove 84” in the present embodiment is a distance between a surface (indicated by a chain line in FIG. 6) obtained by extending the convex surface 81a downward and a bottom surface 84b of the groove 84, and the bottom surface 84b. Is curved, it is the distance at the point where the distance is the largest. Since the bottom surface 84b is formed obliquely with respect to the central axis C8, the depth of the groove 84 is continuously increased from the upper end to the lower end, and the depth d2 at the lower end of the groove 84 is at the upper end. It is larger than the depth d1.

  As shown in FIGS. 3 and 5, no member is disposed between the two spring receiving portions 82 in the circumferential direction of the core rod 81, and the space S 5 that communicates the upper side and the lower side of the dripper valve 8. It has become. The space S5 is a space through which the coffee C flowing out from the extraction port 31b and flowing down passes (beverage passage space). Since the groove portion 84 is open on the outer peripheral side (the direction away from the central axis C8), the groove portion 84 communicates with the beverage passage space (space S5).

  The valve member 9 (introducing member) is a resin member, and has a rod-shaped shaft portion 91 and an umbrella-shaped portion 92 provided at the upper end of the shaft portion 91 as shown in FIG. The shaft portion 91 is inserted into the inflow port 40 d of the attached server 40. The umbrella-shaped portion 92 has a shape in which the upper surface of the truncated cone is recessed, and a shaft portion 91 is connected to the center in a top view, and the inner inclined surface 92b and the top surface are concentrically formed from the inside around the shaft portion 91. 92a and an outer inclined surface 92c are formed.

  The inner inclined surface 92b corresponds to the portion where the upper surface of the truncated cone described above is depressed, and is inclined downward from the top surface 92a toward the inner side (center). The top surface 92a is an annular portion, and is formed in parallel to the XZ plane. The outer inclined surface 92c is a surface inclined downward toward the outer periphery of the umbrella-shaped portion 92, and is smoothly connected to the outer side of the top surface 92a. An opening 93 is formed in the inner inclined surface 92b, and the opening 93 penetrates the umbrella-shaped portion 92 in the vertical direction. Four openings 93 are provided around the shaft 91, and each has a sector shape with an apex angle of 90 ° when viewed from above.

  Next, the flow of the coffee C when the coffee C extracted by the extraction unit 3 is poured into the attached server 40 will be described with reference to the drawings. FIG. 7 is a cross-sectional view taken along the XZ plane of the lower part of the extraction unit 3 and the upper part of the attached server 40 for explaining the flow of the coffee C. In FIG. 7, the flow of coffee C is indicated by a broken line. In addition, about the cross section of the core rod 81, VI-VI sectional drawing of the core rod 81 shown by FIG. 6 is used.

  When the attached server 40 is placed on the placing portion 5 of the coffee maker E (see FIG. 1), the umbrella-like portion 92 of the valve member 9 comes into contact with the rib 36 of the dripper 31 and the valve member 9 is pushed down, and attached. The inlet 40d of the server 40 is opened. Specifically, first, the outer inclined surface 92c of the umbrella-shaped portion 92 and the rib 36 contact each other. As the attached server 40 is pushed rearward (in the −X direction), the contact position between the outer inclined surface 92c and the rib 36 changes, and finally the top surface 92a of the valve member 9 and the rib 36 come into contact with each other. It becomes a state.

  Then, when the operation unit 6 is operated by the user of the coffee maker E to start the extraction of the coffee C, the control unit M operates the hot water supply unit 1 to start supplying hot water to the extraction unit 3. After elapse of a predetermined steaming time, the control unit M operates the motor 34 to move the dripper valve 8 upward, that is, the dripper valve 8 is opened, and coffee from the extraction unit 3 to the attached server 40 (container 4). C injection is started.

  When the dripper valve 8 moves upward and a gap is generated between the O-ring 32b and the dripper 31, the coffee C flows out from the extraction port 31b. Specifically, the coffee C flows out from the gap between the extraction port 31 b and the core rod 81, and the coffee C flows downward along the surface of the core rod 81.

  Here, four convex surfaces 81 a and four concave surfaces 81 b are alternately formed on the side surface of the core rod 81 in the circumferential direction. And the core stick 81 is inserted with respect to the extraction port 31b which is a circular hole by the top view. Even if the core rod 81 is biased to one side, since the concave surfaces 81b are formed on the four sides of the core rod 81, the coffee C flows out along the four sides of the core rod 81. As a result, the coffee C flows evenly covering the entire circumference of the core rod 81. That is, the shape of the outer periphery of the core rod 81 (alternate arrangement of the convex surface 81a and the concave surface 81b) also contributes to the effect of adjusting the flow line of the beverage that flows downward from the dripper valve 8.

  When coffee C flowing along the surface of the core rod 81, particularly the convex surface 81 a, reaches the groove 84, the coffee C enters the groove 84 and flows along the bottom surface 84 b of the groove 84. Accordingly, the coffee C flowing along the concave surface 81 b is also guided toward the groove portion 84. If it does so, compared with the case where the groove part 84 is not provided, the coffee C which collides with the spring receiving part 82 and a streamline disturbs reduces. In other words, the flow of the coffee C flowing down from the dripper valve 8 can be adjusted by the groove portion 84 and the scattering of the coffee C can be suppressed.

  Also, as shown in FIG. 8, the bottom surface 84b of the groove 84 is inclined in a direction in which the lower side approaches the central axis C8 of the core rod 81, so the streamline of the coffee C flowing through the groove 84 is directed to the central axis C8. Aligned in the direction. In other words, the streamline of the coffee C gathers toward the central axis C8 of the core rod 81. Thereby, since the coffee C which flows through the some groove part 84 merges under the core stick 81, and becomes one flow and falls below, the scattering of coffee C can further be suppressed.

  As described above, the top surface 84a of the groove portion 84 is disposed on the upper side (+ Z direction) of the upper surface 82a of the spring receiving portion 82. That is, the groove portion 84 extends from the lower end of the core rod 81 to the upper side of the upper surface 82a of the spring receiving portion 82 along the central axis C8 of the core rod 81. As a result, the coffee C that has flowed down toward the spring receiving portion 82 can flow into the groove portion 84 before colliding with the spring receiving portion 82 as shown in FIG. It is possible to further reduce the scattering of the coffee C.

  In addition, as shown in FIGS. 4 and 8, a recess 85 is formed at the tip of the core rod 81, which is a portion recessed above the lower surface 82 b of the spring receiving portion 82. As C flows, the streamline of coffee C is further concentrated at the center (center axis C8). Therefore, the streamline of the coffee C is further improved, and the scattering of the coffee C can be further suppressed.

  The coffee C that has flowed down from the dripper valve 8 as a unitary flow hits the upper end of the shaft portion 91 of the valve member 9 and passes through the opening 93 formed in the inner inclined surface 92 b of the umbrella-shaped portion 92. Then, the coffee C flows down along the surface of the shaft portion 91 and is accommodated in the attached server 40 through the inlet 40d (see FIG. 1) of the attached server 40. That is, the valve member 9 has an action as an introduction member that receives the coffee C flowing out from the extraction port 31b below the extraction port 31b and guides it to the inside of the attached server 40.

[Another embodiment]
The present invention is not limited to the above-described embodiment, and various other modifications are possible. As an example of the change, another embodiment of the present invention will be described below. Note that the configurations of the following embodiments are not limited to those applied individually, and can be applied in combination with the configurations of other embodiments as long as no contradiction arises.

(1) In the above-described embodiment, the groove portion 84 is formed along the central axis C <b> 8 of the core rod 81. The groove portion 84 may be formed obliquely with respect to the central axis C8, or may be formed in a curved shape or a spiral shape.

(2) In the above-described embodiment, the groove portion 84 is formed below the convex surface 81a, and the spring receiving portion 82 is formed below the concave surface 81b. The spring receiving portion 82 may be formed below the convex surface 81a, and the groove portion 84 may be formed below the concave surface 81b.

(3) In the above-described embodiment, the core rod 81 of the dripper valve 8 is a substantially octagonal rod-shaped body, and the convex surface 81a and the concave surface 81b are formed on the side surfaces thereof. A configuration is also possible in which the core rod is formed in a cylindrical shape and the convex surface 81a and the concave surface 81b are not provided.

(4) In the above-described embodiment, the bottom surface 84b of the groove portion 84 is a continuous surface inclined with respect to the central axis C8, and the depth of the groove portion 84 is continuously increased from the upper end to the lower end. The groove portion 84 may be formed in a step shape, and the depth of the groove portion 84 may be discretely increased.

3: Extraction part, 31: Dripper, 31b: Extraction port, 32a: Spring, 4: Container, 40d: Inlet, 8: Dripper valve, 81: Core rod, 82: Spring receiving part, 84: Groove part, 9: Valve Member (introducing member), 91: shaft portion, 92: umbrella-shaped portion, 93: opening, C: coffee, C8: central shaft, E: coffee maker, S5: space (beverage passage space)

Claims (4)

A beverage extractor having an extractor for extracting beverages using supplied hot water,
The extraction unit includes a dripper that contains the extracted raw material of the beverage and supplies hot water to the extracted raw material, and a dripper valve that opens and closes an extraction port provided at a lower end of the dripper,
The dripper valve has a core rod inserted into the extraction port, and a plurality of spring receiving portions that extend radially from the lower end of the core rod and contact one end of a spring that biases the dripper valve downward,
A groove portion extending from the lower end of the core rod toward the dripper along the central axis of the core rod is provided between the plurality of spring receiver portions on the surface of the core rod, and two adjacent spring receiver portions A beverage extractor in which the groove portion communicates with a beverage passage space that is a space between the two.   The beverage extractor according to claim 1, wherein a depth at a lower end of the groove portion is larger than a depth at an upper end.   The beverage extractor according to claim 1 or 2, wherein a width at a lower end of the groove portion is larger than a width at an upper end. A container for containing the beverage extracted by the extraction unit;
The container has an introduction member that receives the beverage flowing out from the extraction port below the extraction port and guides it to the inside of the container,
The introduction member has a shaft portion that is inserted into the inlet of the container and an umbrella-shaped portion provided at an upper end of the shaft portion, and an opening that penetrates the umbrella-shaped portion in the vertical direction is provided. The beverage extractor according to any one of claims 1 to 3.

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