JPH0510764Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a coffee boiler, and particularly to a coffee boiler that can be miniaturized.

(Prior art) Conventionally, as shown in, for example, Japanese Utility Model Application Publication No. 57-48819, water from a water tank is led to a heater unit to make hot water, and this hot water is supplied to a coffee basket via a hot water supply mechanism. BACKGROUND OF THE INVENTION Coffee brewers are generally known which are adapted to extract coffee liquor by guiding the coffee liquor and to cause the coffee liquor to flow down into a coffee pot which is placed on the heater unit and located below the coffee basket.

(Problem that the invention aims to solve) By the way, in this type of conventional coffee boiler, the water tank is installed in a space separate from the space where the coffee pot and coffee basket are installed, so the coffee boiler There is a problem that the container becomes large.

Furthermore, since the coffee basket is structured to be attached to and removed by sliding horizontally with respect to the main case, there is a problem that the coffee pot may fall over when the coffee basket is removed from the main case.

The present invention was developed in view of the current situation, and an object thereof is to provide a coffee boiler which can be miniaturized and which does not cause the coffee pot to fall over when the coffee basket is removed from the main body case.

(Means for Solving the Problems) The present invention installs a ring-shaped water tank that opens upwards, leaving a space for installing a coffee basket above the coffee pot placed on the heater unit. The coffee basket is characterized in that the coffee basket and the lid can be attached to the center of the tank from above.

(Function) In the coffee boiler according to the present invention, since the water tank is disposed above the coffee pot, the overall size can be reduced. Furthermore, since the water tank has a ring shape that opens upward, it is possible to secure the necessary volume while leaving space for the coffee basket. Furthermore, since the coffee basket and the lid are attached to the center of the water tank from above, there is no risk of the coffee pot falling over when the coffee basket is removed.

(Example) An example of the present invention will be described below with reference to the drawings.

FIG. 2 shows an example of a coffee boiler according to the present invention, and reference numeral 1 in the figure is a main body base on which a heater unit 2 is assembled.
As shown in FIGS. 2 and 3, a ring-shaped water tank 3 that opens upward is fixedly installed on the top of the main body base 1, and forms a main body case together with the main body base 1.
As shown in FIGS. 1 and 2, a coffee basket 4 is removably attached to the center of the water tank 3 from above, together with a lid 5 that is temporarily fixed to the opening at its upper end. The lid 5 and the upper part of the water tank 3 are closed by a detachable main body cover 6.

As shown in FIGS. 2 and 3, a water conduit pipe 8 incorporating a check valve 7 is provided at the bottom of the water tank 3, and the water in the water tank 3 passes through this conduit pipe 8. It is guided to the heater unit 2 and heated by the heater unit 2. In addition, the hot water heated by the heater unit 2 is transferred to a riser pipe 9 and a buffer cover 10 as shown in FIG.
The hot water is guided onto the lid 5 through the hot water guide groove 11 and the hot water diffusion pipe 12 provided in the lid 5 to diffuse and flow down into the coffee basket 4.

As shown in FIGS. 3 and 4, the water tank 3 has a planar shape in which an outer wall 3a is approximately rectangular and an inner wall 3b is circular. It is set to a larger size. As a result, if only the coffee basket 4 is mounted inside the inner wall 3b from above, it will not be able to be fixed and fall, and it is possible to prevent the lid 5 from being forgotten.

As shown in FIGS. 5 and 6, at a position immediately adjacent to the buffer cover 10 on the upper edge of the inner wall 3b and at a position radially opposite thereto, the proximal end side in the clockwise direction in FIG. 4 forms inclined surfaces 13a and 14a. Notch 1
3 and 14 respectively, and both notches 1
As shown in FIGS. 4 and 7, engaging portions 15 are provided at two locations 90 degrees apart from 3 and 14, respectively. Further, as shown in FIGS. 1 and 4, a rib 1 is provided at a position directly below the notch 14 on the inner surface of the inner wall 3b to prevent the coffee basket 4 from falling off.
6 is provided. This will be explained in detail later.

The coffee basket 4 is shown in FIGS. 8 to 9.
As shown in the figure, it is shaped like a funnel whose top end is circular and gradually becomes smaller toward the bottom, and at its bottom end there is a coffee pot 17 placed on the heater unit 2 as shown in FIG. An on-off valve 4a that opens when it comes into contact with is attached.

Also, the buffer cover 1 on the top of the coffee basket 4
As shown in FIGS. 9 and 10, the 0 side portion is provided with a notch 18 into which a hot water guide groove 11 of the lid body 5, which will be described later, is fitted. A locking protrusion 19 is provided to protrude horizontally. Furthermore, a notch 21 in which a mounting portion of the engaging member 20 of the lid body 5 is fitted is provided at a portion radially opposite to the notch 18 at the upper end of the coffee basket 4.
An engaging protrusion 22 with which the engaging member 20 engages with a snap is provided below the notch 21.

On the other hand, as shown in FIGS. 11 to 13, the lid 5 has a shallow cap shape with a flange around the periphery, and a hot water diffusion tube 12 is located in the center of the cap.
A boiling water diffusion tube 1 is provided on the top surface of the lid 5.
A hot water guide groove 11 is provided which extends in the radial direction from 2 and whose tip protrudes from the outer edge of the lid body 5. As shown in FIG. 12, the bottom surface of the hot water guide groove 11 slopes downward toward the hot water diffusion tube 12, so that the hot water flowing down from the buffer cover 10 can be guided to the hot water diffusion tube 12. .

As shown in FIGS. 11 to 13, the hot water diffusion tube 12 has a bottom surface composed of a bowl-shaped portion 12a in the center and a sloped portion 12b that slopes downward from the periphery of the bowl-shaped portion 12a toward the outer edge. A required number of hot water flow holes 23 are provided at the center of the bowl-shaped portion 12a and at the outer edge of the sloped portion 12b, so that the hot water is evenly diffused and flowed down into the coffee basket 4.

Furthermore, locking recesses 24 are provided on the circumferential edge of the lid 5 at positions on both sides of the hot water guide groove 11, as shown in FIG. 14, and open toward the inner diameter side of the lid 5. Then, by inserting and locking the locking protrusion 19 of the coffee basket 4 into the locking recess 24 and attaching the lid 5 to the coffee basket 4, the locking member 20 is locked as shown in FIG. The coffee basket 4 is temporarily fixed to the lid 5 by engaging with the mating piece 22 with a snap.

Further, hook-shaped lid fixing pieces 25 are provided at two locations on the periphery of the lid 5 that are 90 degrees apart from the hot water guide groove 11, as shown in FIGS. 11 and 13. The lid body fixing piece 25 is connected to the lid body 5, and the coffee basket 4 is attached to the center of the water tank 3 from above, and rotated in the circumferential direction to secure the hot water guide groove 11 and the engaging member 20 as described above. By being guided through both notches 13 and 14 (see FIGS. 5 and 6), it is engaged with the engaging portion 15 as shown in FIG. 13.

On the other hand, as shown in FIG. 1, the rising pipe 9 is installed with its tip facing upward near the tip of the hot water guide groove. A cap-shaped buffer cover 10 is fixedly installed,
Also, between the rising pipe 9 and the hot water guide groove 11, there is a space between the rising pipe 9 and the hot water guide groove 11 for collecting the hot water in the buffer cover 10 that has not been guided to the hot water guide groove 11 into the water tank 3.
is provided.

In addition, in FIGS. 1 and 2, the reference numeral 26
is a paper filter placed inside the coffee basket 4.

Next, the operation of this embodiment will be described.

In use, the paper filter 26 is first placed in the coffee basket 4, and coffee powder (not shown) is put into the paper filter 26. Then, the lid 5 is attached to the upper opening of the coffee basket 4. That is, the lid 5 is attached to the coffee basket 4 with the locking protrusion 19 of the coffee basket 4 inserted and locked into the locking recess 24 of the lid 5. Then, the engaging member 20 attached to the lid 5 snaps into engagement with the engaging protrusion 22 of the coffee basket 4, and the coffee basket 4 and the lid 5 are brought together.
is temporarily fixed. Then, the coffee basket 4 and the lid 5 are inserted into the center of the water tank 3 from above.

By the way, if you try to insert only the coffee basket 4 into the center of the water tank 3 from above, the maximum outer diameter of the coffee basket 4 will be larger than the water tank 3.
Since the inner diameter of the inner wall 3b of the water tank 3 is set smaller than the inner diameter of the inner wall 3b of the water tank 3, the coffee basket 4 is
The lid body 5 cannot be attached and fixed to the lid 5, and the user immediately realizes that he has forgotten to attach the lid body 5. Therefore, forgetting to attach the lid 5 can be completely prevented.

When the coffee basket 4 with the lid 5 temporarily fixed is inserted into the center of the water tank 3, the coffee basket 4 is loosely fitted into the inner wall 3b of the water tank 3 as described above, but the lid 5 is inserted into the inner wall 3b. placed on top. Therefore, the lid body 5 is rotated clockwise in FIG. 3 so that the tip of the hot water guide groove 11 is located below the buffer cover 10. Then, the hot water guide groove 11 and the engaging member 20 are guided by the notches 13 and 14 at the upper end of the inner wall 3b, and the lid 5 is lowered.
Further rotating in the circumferential direction, the lid fixing piece 25 is attached to the inner wall 3.
It is locked by the engaging portion 15 of b. As a result, even if the coffee pot 17 is placed below the coffee basket 4, the coffee basket 4 will not float upward.

By the way, the lid body 5 and the coffee basket 4
If the engagement member 20 and the engagement protrusion 22 become disconnected while the water tank 3 is attached to the center of the water tank 3,
The coffee basket 4 swings and falls using the locking protrusion 19 inserted and locked in the locking recess 24 as a fulcrum, and if there is no coffee pot 17 below, the coffee basket 4 falls onto the heater unit 2. Coffee powder may dissipate.

However, in this embodiment, the inner wall 3b of the water tank 3
A rib 16 is provided on the inner surface, and as shown in FIG. 1, the falling engaging protrusion 22 is supported by the rib 16, so that the coffee basket 4 is prevented from falling further and the coffee powder is not dissipated. can be effectively prevented.

After the coffee basket 4 and lid 5 are attached in this manner, a predetermined amount of water is poured into the water tank 3 and the heater unit 2 is energized. Then, the hot water heated by the heater unit 2 is ejected from the tip of the riser pipe 9, and the buffer cover 1
After colliding with the inner surface of the top end of the cup and being buffered, the hot water is guided into the hot water guide groove 11, further diffused by the hot water diffusion tube 12, and poured evenly onto the coffee grounds.

Incidentally, all the hot water in the buffer cover 10 that has spouted from the riser pipe 9 but has not been guided to the hot water guide groove 11 is collected into the water tank 3 through the gap G.

Therefore, since the lid 5 is not forgotten to be attached, the hot water is evenly poured over the coffee grounds, and a richly flavored coffee liquid is obtained.

Further, even if the connection with the lid body 5 is canceled for some reason after the coffee basket 4 is attached to the center of the water tank 3, the engagement protrusion 22 is supported by the rib 16, so that the coffee basket remains 4 is prevented from falling further, and coffee powder can be prevented from scattering.

Further, since the water tank 3 is located above the coffee pot 17 and has a ring shape, a certain volume can be obtained while securing a mounting space for the coffee basket 4, and the device configuration can also be miniaturized.

(Effects of the Invention) As explained above, in the present invention, the water tank is located above the coffee pot, so the overall size can be reduced. Furthermore, since the water tank has a ring shape that opens upward, it is possible to secure the necessary volume while leaving enough space for the coffee pot. Furthermore, since the coffee basket and the lid are attached to the center of the water tank from above, there is no risk of the coffee pot falling over when the coffee basket is removed.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of essential parts showing an embodiment of the present invention;
Fig. 2 is a similar overall configuration diagram, Fig. 3 is a plan view of Fig. 2 with the main body cover omitted, Fig. 4 is a plan view showing the structure of the water tank, and Fig. 5 is the main part Q of Fig. 4. 6 is a view taken along the arrow R of the main part of Fig. 4, Fig. 7 is a sectional view of the main part taken along the - line in Fig. 4, Fig. 8 is a partially cutaway front view of the coffee basket, and Fig. 9 is a view taken along the line R of the main part of Fig. 4. Its plan view, Fig. 10 is a similar left side view, Fig. 11 is a plan view of the lid, Fig. 12 is a sectional view taken along the - line in Fig. FIG. 14 is an enlarged sectional view taken along the - line in FIG. 11. 2... Heater unit, 3... Water tank, 3b
... Inner wall, 4 ... Coffee basket, 5 ... Lid, 9 ... Standing pipe, 10 ... Buffer cover, 11 ... Hot water guide groove, 12 ... Hot water diffusion tube, 15 ... Engagement part, 16 ...Rib, 17... Coffee pot, 19... Locking protrusion, 20... Engaging member, 22... Engaging protrusion, 24... Locking recess, 2
5...Lid fixing piece.

Claims (1)

[Scope of claims for utility model registration] (1) A heater unit incorporated into the main body case,
A coffee pot placed on the heater unit, a ring-shaped water tank that is attached to the main case and located above the coffee pot and opens upward, and a water tank that is placed in the center of the water tank with a lid that opens upward. 1. A coffee boiler comprising: a coffee basket attached to the heater unit; and a hot water supply mechanism for supplying hot water from the heater unit to the coffee basket through a lid. (2) The coffee basket has a protruding piece provided on the outer periphery of its upper end that is fitted into and locked in a locking recess provided in the lid body, and a locking part provided at a position substantially opposite to the protruding piece in the radial direction. The coffee boiler according to claim 1, which is snap-locked to a locking member provided on the lid.