CN111000435A

CN111000435A - Coffee maker

Info

Publication number: CN111000435A
Application number: CN201910937922.8A
Authority: CN
Inventors: 吉田胜彦
Original assignee: Twinbird Corp
Current assignee: Twinbird Corp
Priority date: 2018-10-05
Filing date: 2019-09-30
Publication date: 2020-04-14
Also published as: JP7143177B2; JP2020058404A; TW202019331A; TWI790397B

Abstract

The invention provides a coffee maker which can inject hot water into coffee powder in a filter cup uniformly to make delicious coffee. The coffee maker (1) of the present invention is provided with a housing main body (2), a grinder (17) provided in the housing main body (2), a filter bowl (8) disposed below a drop opening (32) of the grinder (17), and a hot water supply unit (18) for supplying hot water to the filter bowl (8), wherein the drop opening (32) is located above the central portion of the filter bowl (8), and the hot water supply unit (18) has a ring-shaped nozzle main body (51) provided so as to be rotatable about the drop opening (32), and a hot water discharge port (52) provided at the lower portion of the nozzle main body (51), and has a motor for rotating the nozzle main body (51).

Description

Coffee maker

Technical Field

The present invention relates to a drip coffee maker with a grinder.

Background

Conventionally, as such a coffee maker, the following coffee maker is known (for example, see patent document 1): a grinding portion (corresponding to a grinder of the present invention) is provided in a package case (corresponding to a main body of the present invention), an extraction portion (corresponding to an extractor of the present invention) is provided below a coffee powder discharge port of the grinding portion, and a hot water outlet (a nozzle body of the present invention) for injecting hot water is provided in the extraction portion adjacent to the coffee powder discharge port of the grinding portion. Further, the following coffee maker is also known (for example, see patent document 2): a grinder part (corresponding to the grinder of the present invention) is provided in the main body, an extraction part (corresponding to the extractor of the present invention) is provided below a passage part (corresponding to the coffee powder discharge port of the present invention) of the grinder part, and hot water is injected into the extraction part through the passage part.

[ background Art document ]

[ patent document ]

[ patent document 1] Japanese patent application laid-open No. 2009-125252

[ patent document 2] Japanese patent laid-open No. 2016-214437

Disclosure of Invention

Problems to be solved by the invention

In order to brew delicious coffee by manual drip filtration, several methods have been proposed. In any of the brewing methods, it is common to inject hot water equally into the coffee powder in the extractor and to flatten the coffee powder in the extractor. If these conditions can be reproduced by a coffee maker, it is expected that delicious coffee can be brewed.

However, in the coffee maker like the former, there are problems as follows: since the hot water outlet is provided near the ground coffee discharge port, hot water is injected into a biased position in the extraction portion, and as a result, it is difficult to brew coffee well. In addition, there are also problems as follows: since the coffee powder is piled up in a mountain shape in the extraction part, it is difficult to brew coffee well. On the other hand, in a coffee maker like the latter, there are problems as follows: although hot water can be poured into the center of the extraction part by designing the shape of the passage part, coffee powder is piled up in a mountain shape in the extraction part, and coffee powder is stored in the extraction part in a biased manner, so that it is difficult to brew coffee satisfactorily.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a coffee maker that can infuse hot water uniformly into coffee powder in an extractor to produce delicious coffee.

Means for solving the problems

A coffee maker according to claim 1 of the present invention includes a main body, a grinder provided in the main body, an extractor disposed below a discharge port of the grinder, and a nozzle body for supplying hot water to the extractor, wherein the discharge port is located above a central portion of the extractor, and the nozzle body includes a nozzle main body having a ring shape and being rotatable about the discharge port, and a discharge port provided at a lower portion of the nozzle main body, and includes a motor for rotating the nozzle main body.

In the coffee maker according to claim 2 of the present invention, in claim 1, the ejection port is inclined in a direction toward a rotation center.

In addition, a coffee maker according to claim 3 of the present invention is the coffee maker according to claim 1, wherein the coffee maker includes a guide ring that is detachable from the main body, the nozzle body is attached to the main body by the guide ring, and the nozzle body is guided by the guide ring and is rotated.

In addition, a coffee maker according to claim 4 of the present invention is the coffee maker according to claim 1, wherein a dispersing mechanism for coffee grounds is provided below the outlet port.

Further, in a coffee maker according to claim 5 of the present invention, in claim 4, the dispersing mechanism is provided at a lower portion of the nozzle body and is configured to be rotatable together with the nozzle body.

Effects of the invention

The coffee maker according to claim 1 of the present invention is configured as described above, and hot water ejected from the ejection port is uniformly injected into the extractor by rotation, whereby coffee can be extracted satisfactorily, and delicious coffee can be brewed.

In addition, by inclining the ejection port toward the direction of the swirling center, even in the coffee maker in which the grinder is installed, coffee can be extracted more favorably by injecting hot water into the center portion of the extractor by rotation, and thus delicious coffee can be brewed.

Further, the nozzle unit is provided with a guide ring which is attachable to and detachable from the body, the nozzle unit is attached to the body by the guide ring, and the nozzle unit is guided by the guide ring and rotated, whereby the nozzle unit can be easily detached for maintenance and can be easily guided.

Further, by providing a mechanism for dispersing coffee powder below the discharge port, coffee powder can be uniformly stored in the filter bowl without being piled up in a mountain shape, and thus coffee can be extracted more satisfactorily, and delicious coffee can be brewed.

Further, the dispersing mechanism is provided at the lower portion of the nozzle body, and can be rotated together with the nozzle body, so that coffee can be extracted more favorably, and delicious coffee can be brewed.

Drawings

FIG. 1 is a longitudinal sectional view showing a coffee maker according to embodiment 1 of the present invention.

Fig. 2 is a sectional view showing the periphery of a nozzle body of a coffee maker according to embodiment 1 of the present invention.

Fig. 3 is a side view showing the periphery of a nozzle body of a coffee maker according to embodiment 1 of the present invention.

Fig. 4 is a perspective view showing a coffee maker according to embodiment 1 of the present invention.

Fig. 5 is a right side view showing a coffee maker according to embodiment 1 of the present invention.

Fig. 6 is a partially cut-away front view of a coffee maker according to embodiment 1 of the present invention.

Fig. 7 is a perspective view of the periphery of a nozzle body of a coffee maker according to embodiment 1 of the present invention, as viewed from the upper side.

Fig. 8 is a perspective view of the periphery of a nozzle body of a coffee maker according to embodiment 1 of the present invention, as viewed from the lower side.

Fig. 9 is a longitudinal sectional view of the main part of the coffee maker of embodiment 1 of the present invention.

Fig. 10 is a perspective view of a guide ring of the coffee maker of embodiment 1 of the present invention as viewed from below.

Fig. 11 is an enlarged view of a main part of a nozzle body of a coffee maker according to embodiment 1 of the present invention.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. The embodiments described below do not limit the contents of the present invention described in the claims. All the configurations described below are not necessarily essential to the present invention.

[ example 1]

Hereinafter, example 1 of the present invention will be described with reference to fig. 1 to 11. 1 is a coffee maker with an electric grinder. The housing main body 2, which is a main body of the coffee maker 1, includes a rear standing portion 3, a base portion 4 integrally provided with a lower portion of the standing portion 3, and a front brim portion 5 integrally provided with an upper portion of the standing portion 3. The standing portion 3, the base portion 4, and the brim portion 5 each include a synthetic resin. The front portion of the base 4 serves as a placement portion 4A. The standing part 3 is provided with a water storage part 6.

As shown in fig. 1, a heating mechanism 7 for heating water in the water storage portion 6 is provided at the bottom of the water storage portion 6. In addition, a hot water feed mechanism 9 is provided in the casing main body 2, and the hot water feed mechanism 9 feeds hot water heated by the heating mechanism 7 to a filter bowl 8 serving as an extractor. The hot water supply means 9 may be exemplified by a pump.

The filter bowl 8 is disposed below the brim 5. In the filter bowl 8, a filter paper 10 as an extractor is disposed so as to be replaceable.

The placing portion 4A is opened upward, and a substantially planar heating plate 11 is provided so as to close the opening. The heater 12 is disposed in thermal contact with the lower surface of the heating plate 11.

A beverage container 13 is detachably mounted on the heating plate 11. The beverage container 13 includes a heat-resistant glass container body 14 having an upper opening, a synthetic resin grip 15 attached to a side plate of the container body 14, and a synthetic resin lid 16 covering the upper opening of the container body 14.

In front of the standing part 3 and above the beverage container 13 of the mounting part 4A, a grinder 17, a hot water supply part 18 as a nozzle body, the filter bowl 8 as an extractor, and the beverage container 13 are arranged from above. The grinder 17 is detachably mounted to the mounting recess 19 of the housing main body 2. Further, the mounting recess 19 is formed on the upper surface front side of the eaves 5. Further, the hot water supply unit 18 is located on the lower side of the brim 5.

The housing main body 2 is provided with a conductive rod 21 as a contact member containing a conductive material. The filter bowl 8 is made of a conductive material, preferably a conductive synthetic resin. As shown in fig. 1, the filter cup 8 is in contact with the conductive rod 21 at a position where coffee powder is supplied from the grinder 17. On the other hand, a bottom plate 22 made of a conductive material, which is an electric storage member for temporarily storing electric charges, is provided on the case main body 2. In this example, the base plate 22 is made of a stainless steel plate. The bottom plate 22 is electrically connected to the conductive rod 21 via a lead 23. The bottom plate 22 is flat and exposed on the outer surface of the case main body 2.

The stainless steel base plate 22 has a higher specific gravity than the synthetic resin constituting the housing main body 2, and thus serves as a weight. Therefore, the coffee maker 1 can be stably set.

As shown in fig. 1, the bottom plate 22 constitutes the bottom surface of the housing main body 2. As described above, the bottom plate 22 and the conductive rod 21 are electrically connected by the lead wire 23.

Referring to fig. 1 and 3, the grinder 17 grinds coffee beans. The grinder 17 includes a hopper 25 having an inlet 24 at an upper portion thereof, and a grinder lid 26 for opening and closing the inlet 24. Coffee beans are put into the hopper 25, and the coffee beans are conveyed to a shooter (shooter) section 27. The coffee beans conveyed to the blower portion 27 are conveyed toward between the rotary blade 30 and the stationary blade 31 by the grinder screw 29 rotated by the grinder motor 35. Further, coffee beans are ground between the rotary knife 30 and the stationary knife 31 to become the coffee powder (ground beans). The grinder 17 of the present embodiment is of a molar type using the rotary knife 30 and the fixed knife 31 each including a circular plate made of metal, but may be of a type in which coffee beans are ground by rotating a blade.

A drop opening 32 is integrally provided in a lower portion of the grinder 17, and the coffee powder is dropped and supplied from the drop opening 32 into the filter bowl 8. The drop opening 32 is cylindrical.

The grinder motor 35 is built into the housing body 2. A grinder driving gear 36 rotationally driven by the grinder motor 35 is disposed facing the mounting recess 19, and a grinder driven gear 37 meshed with the driving gear 36 is provided at the grinder 17. Then, the grinder 17 is attached to and detached from the attachment recess 19, whereby the grinder drive gear 36 and the grinder driven gear 37 are engaged and disengaged.

The grinder 17 is provided with a particle size adjusting mechanism 38 for adjusting the degree of grinding (particle size) of the coffee powder, and has a rotary dial 39 as an operating portion. The particle size adjusting mechanism 38 adjusts the pulverizing degree of the coffee powder by adjusting the interval between the front surface of the rotary knife 30 and the rear surface of the stationary knife 31. Also, by rotating the dial 39, the interval between the front surface of the rotary knife 30 and the rear surface of the fixed knife 31 can be adjusted.

Referring to fig. 1 and 4, an inclined front surface portion 41 is provided at the front of the mounting portion 4A. On the front surface 41, a plurality of switches 42 are arranged for operation when the coffee maker 1 is in use. As shown in fig. 4, a power switch 43 for turning on/off the power supply is disposed on the right side surface of the mounting portion 4A, and the coffee maker 1 is driven by the household power supply.

Referring to fig. 1 and 7, the drop opening 32 is located above the central portion of the bowl 8. The hot water supply unit 18, which is a nozzle body, includes a nozzle body 51 provided in a ring shape so as to be rotatable about the drop port 32, and a discharge port 52 provided at a lower portion of the nozzle body 51, and includes a motor 53 as an electric motor for rotating the nozzle body 51.

As shown in fig. 1, 2, 7, 8, and the like, the housing main body 2 is provided with a synthetic resin mounting base 54 to which the hot water supply unit 18 is mounted. The mounting base 54 forms a part of the main body. The nozzle body 51 is detachably and rotatably provided on the mounting base 54.

The bottom plate of the mounting base 54 integrally includes a plate-shaped large-diameter main bottom plate 55 to which the nozzle body 51 is detachably mounted, and a plate-shaped small-diameter sub-bottom plate 56. A peripheral wall 57 is provided around the integrated main floor 55 and sub floor 56. A drive gear 58 is disposed on the sub-floor 56. The main bottom plate 55 is provided with a circular mounting hole 59 for mounting the nozzle body 51. The attachment base 54 is fixed to the eave bottom plate 5K in a state where an upper edge of the peripheral wall portion 57 abuts against the eave bottom plate 5K.

As shown in fig. 2 and the like, the nozzle body 51 includes: an annular bottom plate portion 61 that is inclined so that one side thereof is slightly lower than the other side thereof; a lower peripheral wall portion 62 projecting upward from the periphery of the bottom plate portion 61; an insertion flange portion 63 provided around the upper edge of the lower peripheral wall portion 62; an upper peripheral wall portion 64 which protrudes upward from the upper surface of the insertion flange portion 63 and has a diameter larger than that of the lower peripheral wall portion 62; a step 65 provided between these lower and upper

peripheral walls

62 and 64; and a driven gear 67 including a plurality of tooth portions 66 integrally provided on an outer surface of the upper peripheral wall portion 64 and an outer surface of the insertion flange portion 63. Further, the rotation center of the driven gear 67 is in the longitudinal direction.

The insertion flange portion 63 is rotatably supported by the mounting hole 59 via a guide ring 75 described below. Thereby, the nozzle body 51 is rotated centering on the drop opening 32 of the grinder 17. A through hole 68 is bored in the center of the bottom plate portion 61 so as to correspond to the drop hole 32, and a central tube portion 69 projects from the through hole 68. In the nozzle body 51, a hot water receiving space 70 to which hot water is supplied is provided. In addition, in the hot water receiving space 70, hot water can be poured to the upper end of the central tube portion 69. In fig. 1, reference symbol S denotes the center of the filter bowl 8 and the drop port 32, and this center S is also the rotation center of the nozzle body 51.

As shown in fig. 8, a plurality of

nozzles

71, 71A, 71B are integrally formed in the bottom plate portion 61 of the nozzle body 51. The ejection ports 52 are provided in the

nozzles

71, 71A, and 71B, respectively. These ejection ports 52 are provided obliquely toward the rotation center S of the nozzle body 51.

In this example, 3

nozzles

71, 71A, 71B are disposed in proximity to the bottom plate portion 61 at equal intervals in the circumferential direction around the center S, and the 3

nozzles

71, 71A, 71B are disposed offset in the radial direction of the bottom plate portion 61. That is, the 3

nozzles

71, 71A, 71B are located at different positions from the center S. Specifically, among the

nozzles

71, 71A adjacent in the circumferential direction, the nozzle 71 on one side in the circumferential direction is located farther from the center S than the nozzle 71A on the other side in the circumferential direction. Similarly, among the circumferentially

adjacent nozzles

71A, 71B, the nozzle 71A on one circumferential side is located farther from the center S than the nozzle 71B on the other circumferential side. The plurality of

nozzles

71, 71A, 71B are disposed within 90 ° with respect to the center S of the nozzle body 51.

As shown in fig. 2, 8, and the like, the

nozzles

71, 71A, and 71B are disposed on one side of the bottom plate portion 61. Therefore, when hot water is supplied to the hot water receiving space 70 of the nozzle body 51, the hot water is concentrated on the

nozzles

71, 71A, and 71B by the inclination of the bottom plate portion 61 even if the amount of the hot water is small. Further, the

ejection ports

52, 52 of the plurality of

nozzles

71, 71A, 71B are inclined at the same angle with respect to the swirling center S.

Therefore, as described below, the hot water discharged from the plurality of

nozzles

71, 71A, 71B drops at different positions from the center of the filter bowl 8 while the nozzle body 51 is rotated. That is, the hot water discharged from the plurality of

nozzles

71, 71A, 71B draws concentric circles around the swirling center S. Therefore, the hot water can be uniformly supplied to the bowl 8.

As shown in fig. 1 and the like, the nozzle body 51 is disposed below the eave bottom plate 5K of the eave 5, and the mounting base 54 is fixed to the lower surface of the eave bottom plate 5K. Further, as described above, the mounting base 54 is mounted on the casing main body 2 in a state where the peripheral wall portion 57 of the mounting base 54 abuts on the lower surface of the eave bottom plate 5K, and as shown in fig. 2, the upper peripheral wall portion 64 of the nozzle main body 51 is formed slightly lower than the peripheral wall portion 57. Therefore, when the nozzle body 51 rotates, the upper peripheral wall portion 64 does not contact the brim bottom plate 5K. On the other hand, in the attached state, the height position of the nozzle body 51 is defined by the lower surface of the eave bottom plate 5K.

As shown in fig. 9, a hot water supply cylinder 74 serving as a liquid transport and supply unit is integrally provided on the eave bottom plate 5K. The hot water supply cylinder 74 penetrates the eave bottom plate 5K, and a lower end 74K thereof is positioned above the hot water receiving space 70. Further, an upper end of the hot water supply cylinder 74 is connected to the hot water supply mechanism 9 via a liquid transfer path (not shown), and hot water is transferred from the hot water supply mechanism 9 to the hot water supply cylinder 74 via the liquid transfer path. Thus, the hot water supply cylinder 74 constitutes a part of the liquid transport path.

The mounting base 54 constituting a part of the main body includes a guide ring 75 that is detachable from the main body. The nozzle body 51 is attached to the attachment base 54 by the guide ring 75, and the nozzle body 51 is attached to the attachment base 54 so as to be rotatable guided by the guide ring 75.

The guide ring 75 integrally includes a plate-like ring body 76 and a peripheral wall portion 77 projecting upward from an inner end of the ring body 76, and has a substantially L-shaped cross section. The peripheral wall portion 77 has a curved upper end portion 77W formed by curving the upper end thereof. The lower surface of the insertion flange 63 is supported in a line contact state by the bent upper end portion 77W. When the nozzle body 51 rotates, the curved upper end portion 77W slides on the insertion flange portion 63, and the outer surface of the lower peripheral wall portion 62 of the nozzle body 51 partially slides on the inner peripheral surface 77N which is a sliding support portion of the peripheral wall portion 77. The guide ring 75 is attached to the attachment base 54 in a state where the ring body 76 is fitted into the attachment hole 59.

As shown in fig. 10, a plurality of (4) locking projections 78 project outward from the guide ring 75. An insertion groove 79 into which the locking projection 78 is inserted is recessed in an edge of the mounting hole 59 of the mounting base 54. As shown in fig. 9, the lower surface of the locking projection 78 is locked to the upper surface of the main bottom plate 55 around the edge of the mounting hole 59. In this way, the guide ring 75 having the plurality of locking projections 78 and the mounting hole 59 constitute a rotary type mounting mechanism for detachably mounting the nozzle body 51 to the mounting base 54.

As shown in fig. 2 and 8, an operation recess 81 is formed in the front lower surface of the main plate 55. Further, an operation lever 82 as an operation portion is integrally provided on the guide ring 75. In a state where the guide ring 75 is attached to the attachment base 54, the operation lever 82 is disposed in the operation recess 81. Further, a locking protrusion 83 protrudes downward from the circumferential center of the operation recess 81. That is, in the operation recess 81, a state in which the operation lever 82 is positioned on one side of the protrusion 83 is a locking state, and a state in which the operation lever is positioned on the other side of the protrusion 83 is a locking released state. Further, in the locking released state, the guide ring 75 is detached from the mounting base 54.

Therefore, when the guide ring 75 is fitted to the lower peripheral wall portion 62 of the nozzle body 51 by aligning the locking projection 78 with the insertion groove 79 in a state where the nozzle body 51 is disposed in the mounting hole 59 and the driven gear 67 is engaged with the drive gear 58, the locking projection 78 is inserted into the insertion groove 79 and the operating lever 82 is fitted to the locking release position. When the operating lever 82 is rotated to one side from this position so as to go over the projection 83, the locking projection 78 is locked to the upper surface of the main bottom plate 55. Thereby, the nozzle body 51 is fixedly attached to the main body including the casing body 2 and the attachment base 54.

On the other hand, when the guide ring 75 is removed, the guide ring 75 can be removed from the housing body 2 by slightly pressing the operating lever 82 by the height of the protrusion 83 and rotating the guide ring 75 to the other side, thereby aligning the locking tab 78 with the insertion groove 79. Because the protrusion 83 is present like this, the guide ring 75 does not accidentally come off from the mounting base 54. After the guide ring 75 is removed, the nozzle body 51 can be removed and cleaned.

The drive gear 58 is disposed on the sub-floor 56 and meshes with the driven gear 67 of the nozzle body 51. The motor 53 is connected to a rotating shaft 58A of the drive gear 58, and the motor 53 is fixed to the housing main body 2. In this case, the motor 53 is fixed to the upper surface of the eave bottom plate 5K, and the rotation shaft 58A is inserted into the eave bottom plate 5K.

As shown in fig. 1, 2, and 9, a plurality of bosses 85 are provided on the upper surface of the eave bottom plate 5K, and a rectangular connecting cylinder attachment body 86 is fixed to the bosses 85. A connecting tube 87 is integrally provided to the connecting tube mounting body 86. The connection tube 87 is detachably inserted into and connected to the drop opening 32 of the grinder 17. The drop hole 32 is inserted into and connected to the connecting cylinder 87 by attaching the grinder 17 to the attachment recess 19.

Further, a shutter 91 for opening and closing the lower end of the connecting cylinder 87 is provided below the connecting cylinder 87. The shutter 91 is in the form of a plate, and moves back in the horizontal direction along the upper surface of the eave bottom plate 5K to open and close the drop hole 32. To this end, a through hole 91T communicating with the connecting cylinder 87 is formed in the baffle plate 91. As shown in fig. 9, a guide frame portion 92 for guiding the baffle plate 91 is provided on the upper surface of the eave bottom plate 5K.

The housing main body 2 includes a shutter drive mechanism 93 for driving the shutter 91. As shown in fig. 3 and 7, the flapper driving mechanism 93 includes a cam follower 94 integrally provided at an end of the flapper 91, a motor 95, a columnar rotating body 96, and an eccentric shaft body 97 as a cam. The cam follower 94 includes a long hole-shaped frame body that is long in a direction orthogonal to the advancing and retreating direction of the shutter 91. Further, the baffle plate 91 advances and retreats from the diagonally left front to the diagonally right rear of the coffee maker 1.

The motor 95 is disposed above the cam follower 94. The motor 95 incorporates a speed reducer and is vertically disposed with its drive shaft 95J directed downward. The rotating body 96 is provided on the drive shaft 95J. Further, the eccentric shaft body 97 is integrally provided at a lower portion of the rotating body 96. The eccentric shaft 97 is disposed eccentrically from the rotation center of the rotating body 96 and is disposed in the cam follower 94.

In fig. 3 and 7, the connection cylinder 87 is opened by the baffle plate 91 being moved forward and the connection cylinder 87 communicating with the through hole 91T of the baffle plate 91, and the eccentric shaft body 97 is positioned diagonally forward to the left. When the motor 95 is driven to rotate the eccentric shaft body 97 by 180 ° from this position, the eccentric shaft body 97 is retracted to the diagonally right rear side. Accordingly, the shutter 91 integrated with the cam follower 94 is retracted, and the connecting cylinder 87 is closed by shifting the positions of the through hole 91T of the shutter 91 and the connecting cylinder 87.

The shutter driving mechanism 93 includes a detection mechanism for detecting the forward position and the backward position of the shutter 91. The detection mechanism includes a pair of switches 98 and a pair of actuating recesses 99 and 99 as switch actuating portions. A pair of the actuating recesses 99, 99 are provided on the side surface of the rotating body 96 corresponding to the pair of the

switches

98, 98. Further, the pair of actuating recesses 99, 99 is provided as follows: when the shutter 91 is in the forward position, the actuator 98S of one of the switches 98 is on, the actuator 98S of the other of the switches 98 is off, and when the shutter 91 is in the reverse position, the actuator 98S of one of the switches 98 is off, and the actuator 98S of the other of the switches 98 is on. In this way, whether the shutter 91 is in the forward position or the reverse position is detected based on which of the actuators 98S, 98S of the

switches

98, 98 is turned off.

In detail, if the motor 95 is driven at the forward position where the shutter 91 opens the drop-in hole 32, the other switch 98, which is originally off, is turned on. Further, one of the switches 98 that was originally turned on remains turned on. And, if the shutter 91 comes to the retreat position, one of the switches 98 that was originally turned on is turned off. Thereby, the motor 95 is stopped when the drop hole 32 is detected to be closed by the shutter 91. On the other hand, if the motor 95 is driven in the retreat position where the shutter 91 closes the drop-in port 32, one of the switches 98, which is originally off, is turned on. In addition, the other switch 98 that was turned on remains turned on. And, if the shutter 91 comes to the forward position, the other switch 98 that was originally turned on is turned off. Thus, the motor 95 is stopped when the shutter 91 opens the drop hole 32.

A coffee powder dispersing mechanism 101 is provided below the drop opening 32 as a discharge opening. In fig. 1, 2, 5, and 6, the dispersing mechanism 101 is not shown. As shown in fig. 3 and 8, the dispersing mechanism 101 integrally includes a plate-like dispersing portion 102 disposed below the drop opening 32, and a fixing portion 103 for fixing the dispersing portion 102 to the nozzle body 51. The dispersing unit 102 is formed in a substantially elliptical shape and is inclined so that the tip end side (the side of the nozzle body 51) is slightly lowered. Then, the coffee powder falling from the falling port 32 is dispersed by contacting the dispersing unit 102.

Further, a lateral portion 103A of the fixing portion 103 is provided on the proximal end side of the dispersing portion 102, which is narrower than the width of the dispersing portion 102. The dispersing unit 102 is fixed to the lower surface of the nozzle body 51 by the rear end of the lateral portion 103A and the vertical portion 103B of the fixing unit 103. In this way, the dispersing mechanism 101 is provided at the lower portion of the nozzle body 51.

As shown in fig. 1, a gap 105 is provided between the bowl 8 and the nozzle body 51 in the attached state. Accordingly, a dramatic effect can be obtained in which the coffee powder in the filter bowl 8 expands when the hot water is poured into the coffee powder from the gap 105.

As shown in fig. 1, a mounting support portion 106 for mounting a lower portion of the filter bowl 8 is provided on the lid body 16 of the beverage container 13. Further, a mounting portion 107 to be mounted on the mounting support portion 106 of the lid body 16 is provided on the lower side of the bowl 8. Further, by movably fitting a mounting portion 107 of the lower portion of the bowl 8 to a mounting support portion 106 of the lid body 16, the bowl 8 can be stably mounted on the beverage container 13.

An annular step portion 109 having a smaller diameter than the container body 14 is formed in a bottom plate portion 108 of the container body 14 so as to protrude downward, and an annular inner rim 110 into which the step portion 109 is movably fitted is formed to protrude from the upper surface of the heating plate 11. Therefore, when the beverage container 13 is placed on the upper surface of the heating plate 11, the step portion 109 is fitted into the inner rim 110, and the horizontal position of the beverage container 13 is positioned.

The filter bowl 8 is made of conductive synthetic resin as a conductive material, and as shown in fig. 1 and the like, is integrally provided with a bottom plate portion 111 formed to be elongated in the front-rear direction, a side plate portion 112 formed to be enlarged upward from the periphery of the bottom plate portion 111 and formed to be substantially tapered, and a lateral grip portion 113 provided at the upper edge front portion of the side plate portion 112. Further, the grip portion 113 has a plate shape.

As shown in fig. 4 and the like, a plurality of ribs 114 are formed on the inner periphery of the side plate 112 so as to protrude at intervals in the circumferential direction. In this way, by providing the plurality of ribs 114 vertically, the outer periphery of the filter paper 10 is not in close contact with the side plate 112, but is locally in contact with the plurality of ribs 114.

As shown in fig. 1, a plurality of through holes 115 through which the coffee liquid to be extracted falls are formed in the bottom plate portion 111. These through holes 115 communicate with the central opening 16A of the lid 16 in a state where the bowl 8 is attached to the lid 16.

The lower end of the through hole 115 is formed inside a tube 116 projecting downward from the lower surface of the bottom plate 111. Thus, by providing the tube portion 116, the coffee liquid falling through the through hole 115 falls downward from the lower end of the tube portion 116 without turning to the lower surface of the bottom plate portion 111.

Referring to fig. 1 and 6, the conductive rod 21 is formed by bending a metal wire into a substantially U-shape. More specifically, the conductive rod 21 is formed by connecting the lower ends of the left and

right arm portions

121 and 121 in the longitudinal direction by the curved lateral portion 122, and providing the

bent portions

123 and 123 at the longitudinal center of the left and

right arm portions

121 and 121. As a result, the conductive rod 21 has a substantially コ shape in front view and a substantially へ shape in side view. In the standby position of the conductive rod 21 shown in fig. 2, the upper portions of the

arm portions

121 and 121 are arranged in a substantially vertical direction, and the lower portions of the

arm portions

121 and 121 are arranged obliquely forward.

Further, an opening 124 into which the conductive rod 21 is movably inserted and disposed is provided on the rear side of the eave bottom plate 5K of the eave 5. Near the opening 124, the conductive rod 21 is pivotally connected to the housing main body 2 via a left-right pivot (not shown). The opening 124 is inserted through the upper portions of the

arm portions

121 and 121, and the upper end sides of the

arm portions

121 and 121 are disposed in the housing main body 2.

In the state where the filter bowl 8 is attached as shown in fig. 1, the conductive rod 21 pushed by the filter bowl 8 is rotated so that the lower portion moves rearward, and the lateral portion 122 abuts against the outer surface of the side plate portion 112 of the filter bowl 8. On the other hand, the arm 121 does not abut on the bowl 8.

The coffee maker 1 is controlled so that the grinder 17, the heater 12 as the container heating means, and the hot water feeding means 9 do not operate when the conductive rod 21 is located at the standby position even when the power switch 43 is turned on. On the other hand, in the case where the conductive rod 21 is located at the bowl installation position, all the devices electrically driven can be driven.

One end of the lead wire 23 is connected to an upper end of the conductive rod 21 by a screw (not shown) serving as a fixing means. The other end of the lead 23 is connected to the upper surface of the base plate 22 by a screw 132 and a nut 133 as a fixing means. In this way, the lead wire 23 is built in the case main body 2. The bottom plate 22 is formed to be wide so as to constitute the entire bottom surface of the case main body 2. Further, synthetic resin leg portions 134 are provided on the front, rear, left, and right sides of the base plate 22. The lead wire 23 has flexibility to the extent that the conductive rod 21 is movable.

As shown in fig. 2, a synthetic resin holder 135 is fitted to the upper portion of the left and

right arm portions

121, 121. The holder 135 is fixed to the

wrist portions

121, 121 by screws. Further, the lead wires 23 are electrically connected to the

wrist portions

121, 121.

Further, a sealing member 136 made of silicone rubber, elastomer resin, or the like is provided in the opening 124, and the left and

right arm portions

121, 121 are inserted through the sealing member 136. As a result, the left and

right arm portions

121, 121 are inserted into the opening portion 124 in a watertight state, and can be swung by elastic deformation of the seal member 136.

Further, a coil spring (not shown) as an urging mechanism for rotating and urging the conductive rod 21 toward the standby position side is provided. Further, the holder 135 abuts on a stopper (not shown) on the housing main body 2 side to prevent the conductive rod 21 from further swinging, thereby positioning the conductive rod 21 at the standby position.

In addition, a contact detection switch 139 is provided in the housing main body 2. When the conductive rod 21 is located at the standby position shown in fig. 2, the actuator 139S of the contact detection switch 139 abuts against the recess of the detection portion 135A of the holder 135, and the switch 139 is turned off. As a result, the contact detection switch 139 is used to detect that the conductive rod 21 is in the standby position. On the other hand, when the conductive rod 21 is located at the mounting position of the filter bowl 8 shown by the solid line in fig. 1, the conductive rod 21 swings, the actuator 139S is pushed by the protrusion of the detector 135A, and the contact detection switch 139 is turned on. As a result, the contact detection switch 139 is used to detect that the conductive rod 21 is at the mounting position. Thus, the conductive rod 21 also serves as a detecting means for detecting the presence or absence of the filter cup 8, that is, whether or not the beverage container 13 is placed on the hot plate 11 in a state where the filter cup 8 is attached to the lid body 16.

As described above, the conductive rod 21 swings between the standby position and the mounting position. At this time, the water tightness of the opening 124 is ensured by the deformation of the sealing member 136, and thus the intrusion of hot water vapor or dust from the opening 124 into the case main body 2 is prevented.

Next, an example of a method of using the coffee maker 1 will be described. First, the user turns on the power switch 43. Next, the user sets the filter paper 10 in the filter bowl 8 and attaches the filter bowl 8 to the lid 16 of the beverage container 13. In this case, the attachment portion 107 at the lower portion of the bowl 8 is movably fitted to the attachment support portion 106 of the lid 16, whereby the bowl 8 can be stably attached to the beverage container 13.

Then, the user horizontally inserts the beverage container 13 with the filter bowl 8 mounted thereon from the front side toward the rear side below the brim 5, and places the beverage container 13 on the heating plate 11 of the placement portion 4A. When the filter bowl 8 is set at the mounting position in this way, the conductive rod 21 is swung to the mounting position after the conductive rod 21 comes into contact with the filter bowl 8, and the switch 139 detects this. As a result, the grinder 17, the heater 12, and the hot water feed mechanism 9 can be operated.

In addition, the user operates the dial 39 in advance to adjust to a desired particle size before the coffee beans are put into the grinder 17. Then, water is added to the water reservoir 6 in an amount corresponding to the number of cups of coffee liquid to be extracted. Further, the grinder lid 26 of the grinder 17 is removed, and a predetermined amount of coffee beans is put into the hopper 25 through the input port 24. At this stage, the baffle 91 is in a state of blocking the drop opening 32, and the grinder 17 is not communicated with the inside of the bowl 8.

When the user operates the switch 42, the following operations are performed in order. First, the shutter drive mechanism 93 moves the shutter 91 in a direction to open the drop hole 32. Thereby, the drop opening 32 is opened and the grinder 17 communicates with the inside of the bowl 8. Then, the grinder 17 is operated. When the grinder motor 35 is rotationally driven to operate the grinder 17, the coffee beans in the blower portion 27 are transported between the rotary blade 30 and the fixed blade 31 by the grinder screw 29, and the coffee beans are ground into coffee powder (ground beans) between the rotary blade 30 and the fixed blade 31. Then, the coffee powder is dropped and supplied from the drop opening 32 into the filter paper 10 provided in the filter cup 8.

Before the coffee powder is dropped and supplied from the drop opening 32, the motor 53 is driven to rotate the nozzle body 51. Then, the coffee powder falls on the rotating dispersing unit 102, and the coffee powder falls while being dispersed from the front end side and the periphery of the dispersing unit 102. Further, since the dispersion mechanism 101 is also rotated by rotating the nozzle body 51, the coffee powder is uniformly dispersed and stored in the filter paper 10. Accordingly, the coffee powder is not accumulated in a mountain shape in which the center of the filter paper 10 is raised, but is accumulated in a state in which unevenness is reduced.

In addition, simultaneously with the operation of the grinder 17, the energization of the heating mechanism 7 is started. Thereby, the water in the water storage portion 6 is heated to be hot water. Next, when it is detected that the grinder 17 has completely ground the coffee beans, the grinder 17 is stopped, and the shutter 91 is moved in a direction to close the drop opening 32 by the shutter drive mechanism 93. Further, by detecting the current flowing to the grinder motor 35, it can be judged whether or not the coffee beans have been ground. Further, the rotation of the nozzle body 51 is stopped by stopping the motor 53. At this point, the water in the water storage unit 6 does not become hot water.

When it is detected by a temperature sensor (not shown) that the water in the water storage part 6 is hot water at a predetermined temperature (85 to 90 ℃) suitable for extracting coffee liquid, the supply of electric power to the heating means 7 is stopped. Then, the hot water feed mechanism 9 is actuated to supply hot water to the filter bowl 8 for the first time.

Before the hot water feeding mechanism 9 is operated to supply hot water to the filter bowl 8, the motor 53 is driven again to rotate the nozzle body 51 at a fixed speed. During the rotation of the nozzle body 51, the hot water in the water storage portion 6 is supplied from the hot water supply cylinder 74 to the hot water receiving space 70 in the nozzle body 51 of the hot water supply portion 18 via the liquid transfer path by the hot water transfer mechanism 9. The hot water supplied to the hot water receiving space 70 is jetted obliquely inward and downward from the jetting ports 52 of the plurality of

nozzles

71, 71A, 71B provided in the rotating nozzle body 51, and is uniformly rotated and poured onto the ground coffee in the filter cup 8. Further, since the

ejection ports

52, 52 of the plurality of

nozzles

71, 71A, 71B are arranged to be shifted in the radial direction of the nozzle body 51, the hot water is injected into the coffee grounds in the filter cup 8 in a concentric circle shape by rotation. Therefore, the hot water is uniformly supplied to the central portion of the filter bowl 8 in the radial direction. After a predetermined time has elapsed, the hot water feed mechanism 9 is stopped, and the first hot water feed is terminated. At the same time, the rotation of the nozzle body 51 is stopped by stopping the motor 53. The coffee powder in the filter paper 10 is cooked by this first hot water delivery.

The cooking step is ended when a prescribed cooking time has elapsed from the end of the first hot water supply. After the completion of the boiling step, the hot water feed mechanism 9 is operated to feed hot water to the filter bowl 8 for the second time. Further, since the amount of water in the water storage portion 6 is an amount corresponding to the number of cups of coffee liquid to be extracted as described above, if all of the hot water in the water storage portion 6 is supplied to the filter cup 8, a predetermined number of cups of coffee liquid are obtained and the water storage portion 6 becomes empty. In addition, the nozzle body 51 is rotated even during the second hot water supply, and the hot water is ejected from the ejection port 52 and uniformly injected into the coffee powder in the filter cup 8 in a concentric manner. The rotation speed of the nozzle body 51 is about 5 to 10 revolutions per minute. Accordingly, hot water can be uniformly injected into the central portion of the coffee powder stored in the filter paper 10 provided in the filter cup 8, and thus coffee liquid can be extracted well, and a delicious coffee liquid can be obtained. The coffee extracted in the filter bowl 8 passes through the through hole 115 of the filter bowl 8 and the central opening 16A of the lid 16 of the beverage container 13, and is stored in the beverage container 13. In addition, energization of the heater 12 is started simultaneously with the second hot water delivery. Thereby, the beverage container 13 placed on the heating plate 11 and the coffee liquid stored therein are kept warm. The heater 12 is energized for a predetermined time (for example, 30 minutes) from the start of energization. Then, after all the hot water in the water storage portion 6 is fed to the filter bowl 8 and the hot water feeding is completed, the rotation of the nozzle body 51 is stopped by stopping the motor 53.

Since the coffee beans are pulverized by the rotating and

stationary blades

30 and 31 of the grinder 17, the coffee powder is charged. Furthermore, the particles of the coffee powder are charged with the same polarity. That is, the particles of the coffee powder are in an electrically repulsive state with each other. As a result, when the coffee powder falls from the drop opening 32, it is easily spilled from the gap 105 to the outside of the filter bowl 8.

On the other hand, since the conductive rod 21 is in contact with the filter cup 8 at the mounting position, the electric charge of the coffee powder dropped in the filter paper 10 moves from the filter paper 10 to the bottom plate 22 through the filter cup 8, the conductive rod 21 and the lead 23, and is stored in the bottom plate 22. Further, the electric charge stored in the bottom plate 22 is naturally discharged to the outside. As a result, the coffee powder stored in the filter paper 10 becomes an uncharged state. Therefore, the coffee powder falling from the falling port 32 is not repelled by the coffee powder stored in the filter paper 10. Therefore, the coffee powder can be made less likely to leak from the filter cup 8. The paper used as the material of the filter paper 10 can be regarded as a conductive material since a small amount of electricity can be passed through the paper. Accordingly, the electric charge of the coffee powder can be discharged from the filter paper 10 to the conductive rod 21 via the filter cup 8.

In addition, the particles of the falling coffee powder are still charged with each other, and therefore fall while diffusing. However, as described above, the falling coffee powder is not repelled from the coffee powder stored in the filter paper 10. That is, the electrical element of the diffusion of the falling coffee powder is only the charge of the falling coffee powder itself. Therefore, since there is no repulsive force from below, the diffusion of the coffee powder in the fall is suppressed. Therefore, if the distance of the gap 105 is appropriate, the coffee powder that has diffused and dropped can be sufficiently received by the filter paper 10, and therefore the coffee powder can be made less likely to leak from the filter cup 8.

On the other hand, the rotary knives 30 and the stationary knives 31 or parts of their peripheries, which the coffee beans contact, are charged with electricity having a polarity opposite to that of the coffee powder. However, charge is transferred to and from a peripheral object, and the electric potential returns to neutral in the long term.

As described above, the coffee maker 1 of the present embodiment is configured to include the main body of the housing 2, the grinder 17 provided in the main body of the housing 2, the filter bowl 8 as the extractor disposed below the drop opening 32 as the discharge opening of the coffee powder of the grinder 17, and the hot water supply unit 18 as the nozzle body for supplying hot water to the filter bowl 8, wherein the drop opening 32 is positioned above the central portion of the filter bowl 8, the hot water supply unit 18 has a ring-shaped nozzle body 51 provided to be rotatable about the drop opening 32, and an ejection port 52 provided at the lower portion of the nozzle body 51, further, since the motor 53 as an electric motor for rotating the nozzle body 51 is provided, the hot water discharged from the discharge port 52 is uniformly injected into the filter bowl 8 by rotation, and thus coffee can be extracted well, and delicious coffee can be brewed.

In addition, since the spout 52 is inclined in the direction of the rotation center S so that the hot water drops to the center portion of the filter bowl 8, even in the coffee maker 1 in which the grinder 17 is installed, coffee can be extracted more favorably by injecting the hot water into the center portion of the filter bowl 8 by rotation, and thus delicious coffee can be brewed.

Further, since the nozzle body 51 is attached to the casing body 2 by the guide ring 75, and the nozzle body 51 is guided and rotated by the guide ring 75, the nozzle body 51 can be easily removed for maintenance, and the nozzle body 51 can be easily guided.

Further, since the dispersing mechanism 101 for coffee powder is provided below the dropping port 32 which is the discharge port, coffee powder is uniformly stored in the filter cup 8 without being formed into a mountain shape, and thus coffee can be extracted more favorably, and delicious coffee can be brewed.

Further, since the dispersing mechanism 101 is provided at the lower portion of the nozzle body 51 and is configured to be rotatable together with the nozzle body 51, coffee can be extracted more favorably by being configured to be rotatable together with the nozzle body 51, and thus delicious coffee can be brewed.

The effects of the examples will be described below. Since the plurality of teeth 66 are provided on the outer periphery of the upper peripheral wall 64 which is the peripheral wall of the nozzle body 51, and the driven gear 67 is integrally formed with the nozzle body 51, the driven gear 67 meshing with the drive gear 58 can be provided with a simple structure. Further, since the nozzle main body 51 includes the annular bottom plate portion 61 provided to be inclined so that one side thereof with the center S therebetween is slightly lower than the other side thereof, and the plurality of discharge ports 52 are provided on one side thereof, and are particularly arranged within a range of 90 ° with respect to the center of the nozzle main body 51, even if the amount of hot water in the hot water receiving space 70 of the nozzle main body 51 is reduced, the hot water is concentrated in the

nozzles

71, 71A, and 71B by the inclination of the bottom plate portion 61, and thus the hot water in the nozzle main body 51 can be injected from the discharge ports 52 without remaining. Further, since the

discharge ports

52, 52 of the plurality of

nozzles

71, 71A, 71B are arranged at different distances from the center S and are inclined at the same angle with respect to the rotation center S, hot water discharged from the plurality of

nozzles

71, 71A, 71B drops concentrically at different positions from the center S of the bowl 8 in a state where the nozzle body 51 is rotated, and thus the hot water can be uniformly supplied to the bowl 8. Since the upper portion of the hot water receiving space 70 of the nozzle body 51 is opened and hot water is supplied from the hot water supply tube 74 to the hot water receiving space 70, the pressure of the hot water feeding mechanism 9 is not directly applied to the discharge port 52 of the nozzle 71, and thus hot water can be gently supplied from the discharge port 52 to the filter bowl 8.

The guide ring 75 has a curved upper end portion 77W formed by curving the upper end of the peripheral wall portion 77, and the insertion flange portion 63 slides on the curved upper end portion 77W, and the outer surface of the lower peripheral wall portion 62 of the nozzle body 51 partially slides on the inner peripheral surface 77N which is a sliding support portion of the peripheral wall portion 77, whereby the nozzle body 51 can be stably supported for rotation. Further, since the nozzle body 51 is attached to the attachment base 54 constituting the body by the guide ring 75, and the attachment mechanism is a mechanism that attaches and detaches the guide ring 75 by rotating the guide ring 75 with respect to the attachment base 54, the attachment and detachment work of the guide ring 75 is facilitated. Further, since the operation recess 81 in which the operation lever 82 is disposed is provided in the mounting base 54 constituting the main body, and the engagement projection 83 is provided in the operation recess 81, the guide ring 75 can be prevented from being accidentally detached.

The coffee maker 1 includes a main body 2, a grinder 17 attached to the main body 2, and a filter cup 8 and a filter paper 10 as extractors for receiving coffee beans ground by the grinder 17, wherein the main body 2 is provided with a conductive rod 21 as a contact member containing a conductive material, the filter cup 8 contains a conductive material, the filter cup 8 is in contact with the conductive rod 21, the main body 2 is provided with a bottom plate 22 as an electric storage member for temporarily storing electric charge, the bottom plate 22 is electrically connected to the conductive rod 21, and when coffee powder ground charged by the grinder 17 contacts the filter paper 10, the electric charge of the coffee powder is naturally discharged to the outside from the bottom plate 22 after moving from the filter paper 10 to the bottom plate 22 via the filter cup 8 and the conductive rod 21. As a result, the coffee grounds are less likely to be repelled from each other, and therefore, the falling coffee grounds are less likely to leak from the filter cup 8. The filter bowl 8 is made of a conductive synthetic resin, and the filter bowl 8 can be easily formed into a shape suitable for extraction. In this case, for example, the rib 114 is formed inside the bowl 8, and for structural reasons, in the case of metal, it is difficult to manufacture the bowl by pressing or casting, and the cost also increases. On the other hand, the filter bowl 8 having a shape suitable for extraction can be manufactured at low cost by resin molding. Further, the conductive rod 21 as a contact member also serves as a detection means for detecting the presence or absence of the filter bowl 8, and the coffee maker 1 can be operated normally while suppressing the increase of parts.

Further, since the annular step portion 109 having a diameter smaller than that of the bottom plate portion 108 is formed to protrude downward from the bottom plate portion 108 of the container body 14, the annular inner rim 110 into which the step portion 109 is movably fitted is formed to protrude from the upper surface of the heater 12, and the step portion 109 of the container body 14 is surrounded by the inner rim 110 on the heater 12 side in the mounted state, the beverage container 13 can be mounted on the heating plate 11 in a positioned state, and the drip cup 8 mounted on the beverage container 13 can be reliably detected by the conductive rod 21. Further, since the gap 105 is provided between the filter bowl 8 and the brim bottom plate 5K of the brim 5, it is possible to observe that the coffee powder in the filter bowl 8 expands after being poured with hot water. Further, in a state where the conductive rod 21 is positioned at the standby position, the grinder 17, the heater 12 as the container heating means, and the hot water feeding means 9 are not operated, and therefore, it is possible to prevent an erroneous operation in a state where the filter bowl 8 and the beverage container 13 are not mounted. Further, since the conductive rod 21 is formed by bending a metal round bar into a substantially U-shape, it can be manufactured at low cost with a simple structure.

Further, by movably fitting a mounting portion 107 at the lower portion of the bowl 8 to the mounting support portion 106 of the lid body 16, the bowl 8 can be stably mounted on the beverage container 13. Further, since the bottom plate 22 is made of stainless steel having a higher specific gravity than the synthetic resin constituting the housing main body 2, the bottom plate 22 becomes a weight, and thus the coffee maker 1 can be stably installed. Further, since the tube 116 projects downward from the lower surface of the bottom plate 111 and the through hole 115 is bored in the tube 116, the coffee liquid falling from the through hole 115 can be caused to fall downward from the lower end of the tube 116 without turning to the lower surface of the bottom plate 111 by the tube 116.

Further, since the sealing member 136 is provided in the opening 124 provided in the eave bottom plate 5K of the eave 5, the conductive rod 21 can be provided movably in the opening 124, and the sealing member 136 can prevent hot water vapor, dust, and the like from entering the case main body 2. Further, since the gap 105 is provided between the filter bowl 8 and the brim 5 in the attached state of the filter bowl 8, the beverage container 13 can be easily taken in and out of the heating plate 11. Further, the conductive rod 21 as a contact member is formed of a metal wire rod having a circular cross section and is provided movably with respect to the housing main body 2 as a main body, and the conductive rod 21 can be formed into a thin shape, and as a result, the opening portion 124, which is a gap formed in the housing main body 2 for providing the conductive rod 21, can be narrowed, and the amount of hot water vapor entering the housing main body 2 from the filter bowl 8 can be reduced even if the sealing member 136 is not present.

The present invention is not limited to the above embodiments, and various modifications can be made within the scope of the gist of the present invention. For example, in the embodiment, the driven gear is provided in the nozzle body, and the driving gear engaged with the driven gear is rotated by the motor to rotate the nozzle body, but the rotation of the motor may be transmitted to the nozzle body by using a roller, a belt, or the like, in addition to the engagement of the gears. In addition, when the guide ring is attached, other rotary attachment structures such as a screw and a bayonet (bayonet) may be used, or attachment structures other than the rotary attachment structure may be used. Further, in the above embodiment, the filter bowl is mounted on the beverage container, but the filter bowl may be mounted on the main body, for example, the filter bowl may be housed in a housing case, the housing case may be rotatably mounted on the main body at one side in the left-right direction by a longitudinal pivot, and the housing case may be rotated together with the filter bowl to be freely set up with respect to the main body. In addition, in the embodiment, with respect to the grinder, a mortar grinder is shown, but may be a blade grinder. Further, in the above embodiment, the grinder, the heater as the container heating means, and the hot water feed means are not operated in the state where the conductive rod is located at the standby position, but the entire apparatus may be not operated. Further, a plurality of (3) discharge ports are provided in the nozzle body, but the number of discharge ports may be 2 or 4 or more. Further, for example, in the case where an inclined tube portion is provided below a dropping port serving as a discharge port in the embodiment and coffee powder drops from the tube portion to the extractor, the dispersing mechanism may be provided below the discharge port and directly below the tube portion where the coffee powder drops.

Reference character comparison table

1 … coffee maker

2 … Main body of shell (Main body)

3 … upright setting part

4 … base

4A … placing part

5 … eave

5K … eave bottom plate

6 … Water storage part

7 … heating mechanism

8 … filter bowl (extractor)

9 … hot water delivery mechanism

10 … Filter paper

11 … heating plate

12 … heater

13 … beverage container

14 … Container body

15 … grip part

16 … cover

16A … center opening

17 … grinder

18 … Hot Water supply part (nozzle body)

19 … mounting recess

21 … conducting rod

22 … bottom plate

23 … conducting wire

24 … input port

25 … hopper

26 … grinder cover

27 … blower part

29 … grinder screw

30 … rotary knife

31 … fixed knife

32 … drop opening (discharge port)

35 … grinder motor

36 … grinder drive gear

37 … grinder driven gear

38 … granularity adjusting mechanism

39 … rotary dial

41 … front surface part

42 … switch

43 … power switch

51 … nozzle body

52 … spray outlet

53 … Motor (electric motor)

54 … mounting base (Main body)

55 … Main baseboard

56 … subfloor

57 … peripheral wall part

58 … drive gear

58A … rotating shaft

59 … mounting hole

61 … bottom plate part

62 … lower wall

63 … flange portion

64 … upper wall

65 … step

66 … tooth

67 … driven gear

68 … through hole

69 … center tube part

70 … hot water receiving space

71. 71A, 71B … nozzle

74 … Hot Water supply Cartridge

75 … guide ring

76 … Ring body

77 … peripheral wall part

77N … inner peripheral surface

77W … curved upper end

78 … locking tab

79 … insertion groove

81 … operation concave part

82 … operating rod

83 … projection

85 … boss part

86 … connecting cylinder mounting body

87 … connecting cylinder

91 … baffle

91T … through hole

92 … guide frame portion

93 … baffle driving mechanism

94 … cam follower

95 … motor

95J … drive shaft

96 … rotary body

97 … eccentric shaft body

98 … switch

98S … actuator

99 … concave part

101 … dispersion mechanism

102 … dispersing part

103 … fixed part

103A … horizontal part

103B … longitudinal part

105 … gap

106 … mounting support

107 … mounting part

108 … bottom plate part

109 … step part

110 … inner rim

111 … bottom plate part

112 … side plate part

113 … grip

114 … rib

115 … through hole

116 … cylindrical part

121 … wrist

122 … transverse part

123 … bending part

124 … opening part

132 … screw

133 … nut

134 … foot part

135 … holder

135A … detection part

136 … sealing member

139 … switch

139S … actuator

Center of S …

Claims

1. A coffee maker comprising a main body, a grinder provided in the main body, an extractor disposed below a discharge port of the grinder, and a nozzle body for supplying hot water to the extractor, characterized in that:

the nozzle body has a nozzle body provided in a ring shape and rotatable around the discharge port, and a discharge port provided at a lower portion of the nozzle body, and has a motor for rotating the nozzle body.

2. A coffee maker as claimed in claim 1, wherein: the ejection port is inclined toward the rotation center.

3. A coffee maker as claimed in claim 1, wherein: the coffee maker further includes a guide ring configured to be attachable to and detachable from the main body, the nozzle body being attached to the main body by the guide ring, and the nozzle body being guided by the guide ring to rotate.

4. A coffee maker as claimed in claim 1, wherein: a coffee powder dispersing mechanism is arranged below the discharge port.

5. A coffee maker as claimed in claim 4, wherein: the dispersing mechanism is provided at a lower portion of the nozzle body and is rotatable together with the nozzle body.