JPH0533043B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a coffee making machine in which a coffee bean grinding mechanism and a coffee liquid extraction mechanism are housed in a box-shaped main body.

[Technical Background of the Invention] A conventional coffee making machine includes a case mounting portion on the top surface of the main body in which a motor and a hot water supply mechanism are installed, and a water tank mounting portion and a water tank mounting portion on both upper and lower sides of the front portion of the main body, for example. A bottle placing part is provided, and a case containing coffee beans is set on the case placing part and the motor is started to rotate the grinding body in the case to grind the coffee beans. The water from the cup was heated to hot water by a hot water supply mechanism and supplied into the case, and the coffee liquid that flowed out from the outlet after being filtered by the filter member of the case was stored in the bottle.

[Problems with the Background Art] However, in conventional coffee making machines, the case is exposed, so when the coffee beans are being ground, they are bounced off by the grinding body and collide with the peripheral wall of the case, causing a knocking sound. The problem was that it started leaking outside, making a lot of noise.

[Object of the Invention] An object of the present invention is to provide a coffee making machine that can reduce noise during grinding of coffee beans.

[Summary of the Invention] According to the present invention, a main body is formed into a box shape with an open front, a case storage chamber is partitioned by walls within the main body box, and the front opening of the case storage chamber is closed by a door. By having a structure that opens and closes with
The case is placed in a closed room to reduce noise by preventing the knocking sound generated when coffee beans are ground from directly leaking outside, and a steam vent hole is formed in the door to keep the case closed. By arranging the cup in a closed room, the steam that tends to get stuck inside the cup when brewing coffee liquid can be discharged to the outside.

[Embodiment of the Invention] An embodiment of the present invention will be described below based on the drawings.

First, in FIG. 2, 1 is a rectangular main box with an open front, and this main box 1 is suspended from a mounting bracket 4 fixed to the bottom surface of a shelf board 2 with screws 3 via a fixture 5. It is attached. As shown in FIG. 3, an inner box body 6 is disposed and fixed inside the main body box 1 to divide the inside of the main body box 1 into four chambers vertically and horizontally. The chamber defined by the box part 7 on the left side of the upper part of the inner box body 6 is used as a case storage chamber 8, and the room defined by the box part 9 on the right side of the upper part as a wall body is used as a case storage chamber 8 for storing a water tank. A chamber 10 is defined by a box section 11 on the lower right side, a bottle storage chamber 12 is defined, and a chamber on the lower left side surrounded by a box section 7 on the upper left side and a box section 11 on the lower right side is defined as a bottle storage chamber 12. It is designated as mechanism room 13. Here, each box part 7, 9 and 11
is formed into a rectangular shape with only the front side open, and the upper wall of the lower box part 11 is also used as the bottom wall of the box part 9 and the right side of the bottom wall of the box part 7. Also, box part 7
Therefore, as shown in FIG. 4, the upper surface 8a of the case storage chamber 8 is formed so as to be inclined obliquely upward toward the front. On the other hand, the motor case portion 1 protrudes into the mechanism chamber 13 from the bottom wall of the upper left box portion 7.
4 extends integrally, and a motor 15 is disposed within this motor case portion 14. and,
One pawl plate 17 of a dog clutch 16 is attached to the upper end of a rotating shaft 15a of a motor 15 that penetrates the bottom of the box portion 7 and thus the case storage chamber 8 and projects upward. Reference numeral 18 denotes a heating panel attached to the bottom of the box part 11 and therefore the bottle storage chamber 12. An electric heater 20 and a heating tube 21 constituting the hot water supply mechanism 19 are buried in this in parallel. Both end portions extend upwardly through the rear side of the bottle storage chamber 12 (box portion 11). One end of the heating pipe 21 is connected to a joint pipe 22 attached to the lower part of the back wall of the water tank storage chamber 10 (box part 9) as shown in FIG. 5, and the other end is shown in FIG. It is connected to a hot water supply pipe 23 attached to the right side wall of the case storage chamber 8 (box section 7). This hot water supply pipe 23 is attached to a forward facing wall portion 7a formed in the middle of the right side wall of the box portion 7 in the front and back direction, and has a downwardly directed hot water outlet (not shown) at the front end projecting into the case storage chamber 8. ) is formed. Reference numeral 24 denotes a bottle, and a lid 25 removably attached to the upper part has a receiving hole 25a for receiving coffee liquid into the bottle 24.
is formed, and the area around this receiving hole 25a is recessed. This bottle 24 has a receiving hole 25a in the lid 25.
It is removably stored on the heating plate 18 in the bottle storage chamber 12 so that it is located on the left side. 26
is a water tank, and as shown in Fig. 5, a lid 27 is removably attached to the upper part, and a water outlet 28 is formed at the lower part of the back, and a valve device 29 for opening and closing this water outlet 28 is attached. There is. Valve body 30 of this valve device 29
is always biased backward to close the water outlet 28 by the compression spring 31, and when water is supplied into the water tank 26 from a tap, the water outlet 28 is closed by the valve body 30 and water leaks out. It will be done as if nothing happened. Such a water tank 26 is located in the water tank storage chamber 10.
It is removably stored inside. In the stored state of the water tank 26, the water outlet 28 is connected to the joint pipe 22, and the valve body 30 is connected to the joint pipe 22.
The water outlet 28 is pushed by a push rod 22a integrally formed inside the spring 2, moves forward against the spring force of the compression spring 31, and opens the water outlet 28. Also, water tank 26
In the stored state, the water tank 26 is in a state in which the push plate 33 attached to the rear wall of the water tank storage chamber 10 together with the compression spring 32 is pushed backward against the spring force of the compression spring 32. Therefore, the water tank 26 is biased forward by the spring force of the compression spring 32. The water tank 26 can also resist the biasing force of the compression spring 32 by fitting the notches 26a formed at the front lower part of both left and right sides into the protrusion 10a formed at the front part of the bottom wall of the water tank storage chamber 10. Regardless, it is held so that it does not protrude forward from the water tank storage chamber 10. still,
To take out the water tank 26, the front part thereof is slightly pulled up and the notch part 26a is removed from the protruding part 10a.
In FIGS. 1 and 3, a case 34 is used for both grinding coffee beans and extracting coffee liquid. and a receiver 37 connected to the filtration member 35 to receive the coffee liquid flowing down from the filtration member 35. The valve device 3 is inclined and forms an outlet 38 at the bottom of the protrusion 37a, and opens and closes the outlet 38.
I am wearing 9. A cutter shaft 40 is rotatably supported by a cylindrical portion 36a formed at the center of the bottom of the case main body 36. A cutter 41, which is a crushing body located inside the case main body 36, is attached to the upper end of the cutter shaft, and a cutter shaft 40 is attached to the lower end of the cutter shaft. The other pawl plate 42 of the dog clutch 16 is attached. Reference numeral 43 denotes a hot water diffuser that doubles as a lid and is removably attached to the upper part of the case 34, and has a plurality of hot water pouring holes 44 in the center and outer periphery, respectively.
is formed, and also forms a hot water guide path 45 extending radially outward from the central portion, and this hot water guide path 4
An insertion opening 46 is cut out on the rear side of the protruding end of 5. The upper surface of this hot water diffuser 43 is covered by a cover 47 attached thereto. The case 34 covered with such a hot water diffuser 43 is stored in the case storage chamber 8 so as to be removably attached to the bottom of the case storage chamber 8. Attachment of the case 34 is accomplished by a bayonet engagement mechanism. That is, an annular protrusion 48 is provided at the bottom of the case storage chamber 8, into which an annular rib 37b protruding from the lower surface of the receiver 37 of the case 34 is fitted. An engagement groove 49 is formed.
On the other hand, a protrusion 50 is provided on the inner peripheral surface of the annular rib 37a of the receiver 37, and the protrusion 50 is inserted into the engagement groove 4.
9 of the annular rib 3 of the receiver 37.
7b is fitted to the outside of the annular convex portion 48, and then the case 34 is rotated counterclockwise in FIG. It is removably attached. Then, by rotating the case 34 to engage the protrusion 50 with the engagement groove 49, the hot water supply pipe 23 is inserted into the inside of the protruding end of the hot water guide path 45 of the hot water diffuser 44 through its insertion port 46. In addition, the protrusion 37a having the outlet 38 of the receiver 37 is inserted into the receiving hole 25a of the lid 25 of the bottle 24 through an opening 51 formed in the bottom wall of the case storage chamber 8 so as to communicate with the bottle storage chamber 12. Further, the valve body 52 of the valve device 39 is brought into contact with the bottle 24 by the operator 53 due to the rotation of the case 34 or due to the storage of the bottle 24 in the bottle storage chamber 12 after the case 34 is attached. Therefore, it operates to open the outlet 38. Furthermore, the claw plate 42 of the cutter shaft 40 is connected to the claw plate 17 of the motor 15 by attaching the case 34.
When engaged, rotation can be transmitted.

As shown in FIGS. 1 and 2, an operation panel 54 is mounted on the front surface of the mechanism chamber 13, and a switch (see FIG. An operating section 55 (not shown) is provided. Further, a door 56 for opening and closing the front opening of the case storage chamber 8 is pivotally installed. This door 56 is a side-opening type that rotates around the left end, and an iron piece 57 is attached to the right end, and this iron piece 57 is attracted to a magnet 58 attached to the inner box body 6 side. It is configured to maintain the closed state by this. The door 56 has a plurality of steam vent holes 59 formed in its upper part, and a protrusion 56a that protrudes into the case storage chamber 8 is integrally formed in its upper edge.

Next, the operation of the above configuration will be explained.

The case 34 and the water tank 26 are placed in their respective storage chambers 8.
and 10 to house the coffee beans in the case 34 and absorb water in the water tank 26. Then, the case 34 is stored in the case storage chamber 8 and the door 56 is closed, and the water tank 26 is stored in the water tank storage chamber 10. When the motor 15 is started in this state, the cutter 41 rotates and grinds the coffee beans in the case 34. At this time, the coffee beans are blown away by the cutter 41 and collide with the inner circumferential surface of the case main body 36, producing a knocking sound, but the case 34 is moved to the case storage chamber 8, which is closed by the door 56.
Since the drum is housed inside the drum, the hitting sound does not directly leak out to the outside, so the user does not hear it as a very loud sound, resulting in low-noise operation. After the coffee beans are ground, when the electric heater 20 is energized, the water flowing from the water tank 26 into the heating pipe 21 is heated to boiling water and is supplied from the hot water supply pipe 23 into the hot water guide path 45 of the hot water diffuser 43. . This hot water is guided by the hot water guide path 45, flows into the hot water diffuser 43, and flows down into the case main body 36 from each pouring port 44. Then, the filter member 35 passes through the coffee powder.
The coffee liquid that has been filtered and flowed down into the receiver 37 flows out from the outlet 38 and is stored in the bottle 24. When extracting this coffee liquid, the hot water pipe 23
Steam leaks into the case storage chamber 8 from the gap between the opening 46 and the insertion opening 46, or steam from the coffee liquid stored in the bottle 24 enters the receiving hole 25a of the lid 25.
The steam rises from the case storage chamber 8 and flows into the case storage chamber 8 through the opening 51, but this steam is guided forward by the inclined upper surface 8a of the case storage chamber 8 and flows out through the steam vent hole 59 of the door 56. Therefore, problems such as dew condensation forming on the inner surface of the case storage chamber 8 and making subsequent cleaning troublesome can be prevented as much as possible. In this case, the protruding portion 56a of the door 56 creates a condition in which only a small gap having a certain length in the front-rear direction exists between the door 56 and the upper surface of the case storage chamber 8, making it difficult for steam to pass through. Therefore, most of the steam flows out from the steam vent hole 59. Therefore, since there is almost no steam leakage other than from the place where steam should originally escape (steam vent hole 59), there is no risk of causing the user to feel uneasy about malfunction.

[Effects of the Invention] As explained above, in the present invention, the case is stored in a case storage chamber that can be closed with a door, so that the knocking sound generated when coffee beans are ground inside the case is directly absorbed. It is possible to prevent leakage to the outside, enabling low-noise operation, and
Since the steam vent hole is formed in the door, it has an excellent effect in that the steam that tends to get stuck inside the case storage chamber when coffee liquid is extracted can be discharged to the outside.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a perspective view of the main parts shown together with the disassembled case, and FIG.
The figure is a perspective view of the entire structure attached to a shelf, Figure 3 is a vertical front view of the entire body, Figure 4 is a vertical side view of the case storage chamber, and Figure 5 is a vertical side view of the water tank storage chamber. be. In the figure, 1 is the main box, 2 is the shelf board, 6 is the inner box body, 7
1 is a box part (wall), 8 is a case storage chamber, 10 is a water tank storage chamber, 12 is a bottle storage chamber, 13 is a mechanism chamber, 15 is a motor, 16 is a meshing clutch, 1
9 is a hot water supply mechanism, 20 is an electric heater, 21 is a heating tube, 23 is a hot water supply pipe, 24 is a bottle, 26 is a water tank, 34 is a case, 35 is a filtering member, 36 is a main body of the case, 37 is a receiver, 38 is a Outlet, 41 is a cutter (grinding body), 46 is a hot water diffuser, 47 is a cover,
54 is an operation panel, 56 is a door, 56a is a protrusion,
59 is a steam vent hole.

Claims (1)

[Claims] 1. A case including a motor, a filtration member, and a grinding body for grinding coffee beans driven by the motor, a water tank, and the water tank in a main body box with an open front. a hot water supply mechanism that heats water from inside the case and supplies it into the case; and a bottle that stores coffee liquid that is supplied into the case, passes through coffee powder, is filtered by the filter member, and flows out from the outlet of the case. A case storage chamber in which the case is stored in the main body box is partitioned by a wall, and a front opening of the case storage chamber is defined by a door having a steam vent hole. A coffee making machine characterized by being designed to open and close. 2. The coffee making machine according to claim 1, wherein the upper surface of the case storage chamber is inclined diagonally upward toward the front. 3. The coffee making machine according to claim 1 or 2, wherein the upper edge of the door is provided with a protrusion that protrudes into the case storage chamber.