JPH10248721A - Coffee maker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the generation of short-circuit and electric shocks as much as possible by turning a water tank upper part opening peripheral edge to constitution for making water overflow from a part other than the part positioned at the upper part of a power source switch so as not to make the overflowing water reach the power source switch along a water tank outer wall surface. SOLUTION: When more than rated capacity of the water is erroneously put in a water tank 2 and the water is made to overflow from the water tank 2, the overflowing water reaches a lower part through the outer wall surface of the water tank 2. In this case, since a projection part 11 is provided on the upper part of the power source switch 10, the water hardly overflows from the upper part of the power source switch 10. Thus, the overflowing water is suppressed from entering the power source switch 10 and is not accumulated in a conducting part inside the power source switch 10 and the danger of the short-circuit and the electric shock is eliminated. Also, the water overflowing from both sides of the projection part 11 is obstructed by steps 12 formed by the expansion of the water tank outer wall surface in a range from the projection part 11 to the power source switch 10, the overflowing water is prevented from entering the power source switch 10 and the danger of the short-circuit and the electric shock is eliminated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a coffee machine.

[0002]

2. Description of the Related Art FIGS. 7 and 8 show Japanese Utility Model Publication No. 60-7627.
1 shows a conventional coffee stove found in Japanese Patent Publication No. A water tank 21 integrally formed with the coffee boiler main body 20 is provided, and water in this water tank passes through a pipe 22 and is heated by a heater 23 on the way to become hot water. The hot water is supplied from a pipe 22 to an extraction unit 24 containing coffee grounds to extract coffee liquid, and the coffee liquid is accumulated in a lower container 25. When the water tank 21 is integrally formed with the main body 20 as described above, the cost of the coffee brewer can be reduced. The power switch 26 for turning on / off the power to the heater 23 is generally provided below the outer wall side of the water tank 21 and is an inexpensive open type.

[0003]

In such a coffee brewing machine, when extracting the coffee liquid, since the water tank 21 is integrally formed with the main body 20, the main body 20 itself is brought to a water tap. Then, water is put into the water tank 21. In this case, water tank 2
In some cases, water exceeding the rated capacity is poured into the tank 1 and the water overflows from the water tank 21. The overflowing water is in the water tank 21
Along the outer wall of the power switch 26 to enter an open type power switch 26 provided below and accumulate in a conductive portion of the power switch 26, which may cause a short circuit or an electric shock. According to the present invention, in a configuration in which a water tank is formed integrally with the main body of the coffee brewer for cost reduction, even if water overflows when the water is poured into the water tank from the faucet, the water remains in the power switch. An object of the present invention is to provide a coffee brewing machine that can minimize the occurrence of short circuit and electric shock.

[0004]

SUMMARY OF THE INVENTION A coffee brewer of the present invention is formed integrally with a coffee brewer and has a water tank supplied with water from an upper opening, a pipe connected to the water tank, and a water tank. A heater that is disposed in the middle of the pipe and heats water guided through the pipe from the water tank to make hot water, and contains coffee powder, and the hot water is supplied from the pipe to extract a coffee liquid. An extraction unit, a container for storing the extracted coffee liquid, and a power switch provided below the outer wall surface of the water tank to turn on / off the power to the heater, and from a peripheral edge of an upper opening of the water tank. In order to prevent overflowing water from traveling along the outer wall of the water tank and reaching the power switch, the peripheral edge of the upper opening of the water tank overflows from a portion other than the portion located above the power switch. It is obtained by the configuration that. According to this configuration, when the water overflows when filling the water tank,
The overflowing water travels down the outer wall of the water tank, but the periphery of the upper opening of the water tank overflows from a location other than the location above the power switch. The water does not overflow, which prevents the overflow water from entering the power switch. Further, on the outer wall surface of the water tank, a range from the periphery of the upper opening of the water tank located above the power switch to the power switch is bulged outward.
According to this configuration, water that overflows from above the power switch at the upper edge of the water tank gradually spreads along the outer wall surface of the water tank and goes down, and then tries to reach the power switch. Since the water to be squeezed is blocked by the step formed by bulging the outer wall surface of the water tank to the outside, overflowing water is further suppressed from entering the power switch.

[0005]

1 to 6 show a coffee brewer according to an embodiment of the present invention. A water tank 2 is formed integrally with the coffee machine 1 for cost reduction, and the water tank 2 has an upper opening 4 closed by a detachable upper lid 3.
And water is supplied from the opening 4 into the water tank 2. The water supplied into the water tank 2 passes through the check valve 5, and reaches the pipe 6 having one end connected to the water tank 2 via the valve. A heater 7 is disposed in the middle of the pipe 6, and the heater 7 heats water passing through the pipe 6 to make hot water. When the water becomes hot water, the pressure in the pipe 6 is increased.
Because there is a check valve 5 at one end of the pipe 6, it comes out from the other end of the pipe 6. The hot water flowing out of the pipe 6 is supplied to a lower extraction unit 8 having a paper filter set therein and containing coffee powder therein, and coffee liquid is extracted from the extraction unit 8. The extraction unit 8 is mounted on a container 9, and the coffee liquid to be extracted accumulates in the container 9. The container 9 is placed on the heater 7, and the coffee liquid stored in the container 9 is kept warm by the heater 7. Below the outer wall surface of the water tank 2, an inexpensive open-type power switch 10 for turning on / off the power to the heater 7 is provided. Further, a protrusion 11 having a fixed width is integrally formed at a position on the periphery of the upper opening 4 of the water tank 2 above the power switch 10 so as to protrude upward. Then, on the outer wall surface of the water tank 2, a range from the protruding portion 11 to the power switch 10 bulges outward, and steps 12 are formed in the vertical direction. In such a coffee boiler, when extracting the coffee liquid, since the water tank 2 is integrally formed with the main body 1, the main body 1 itself is brought to the tap of the water supply and the water is poured into the water tank 2. Will enter. In this case, the water tank 2 may be erroneously filled with water having a rated capacity or more, causing the water tank 2 to overflow. The overflowing water travels down the outer wall of the water tank 2. In this case, since the protruding portion 11 is provided above the power switch 10, it is difficult for water to overflow from above the power switch 10.
Therefore, overflowing water is prevented from entering the power switch,
There is no accumulation in the conductive portion in the power switch 10 and there is no danger of short circuit or electric shock. In addition, the protrusion 1
The water overflowing from both sides of the water tank 1 gradually spreads downward along the outer wall surface of the water tank 2 and tries to reach the power switch 10 below the protrusion 11. The steps 12, 12 formed by the bulging of the outer wall surface of the water tank over the range are prevented as shown by the arrow in FIG.
It is suppressed from entering 0, and there is no danger of short circuit or electric shock.

[0006]

According to the present invention, in a configuration in which the water tank is formed integrally with the main body of the coffee machine for cost reduction, even if water overflows when water is poured into the water tank from the faucet. It is possible to minimize the occurrence of short circuit and electric shock caused by water entering the power switch, thereby providing a highly safe coffee brewer.

[Brief description of the drawings]

FIG. 1 is a perspective view of a coffee machine according to an embodiment of the present invention.

FIG. 2 is a side sectional view of the coffee machine.

FIG. 3 is a perspective view of a main body of the coffee machine.

FIG. 4 is a perspective view of a main part of the main body of the coffee machine.

FIG. 5 is a sectional view taken along line AA of FIG. 1;

FIG. 6 is a sectional view taken along line BB of FIG. 1;

FIG. 7 is a side sectional view of a conventional coffee machine.

FIG. 8 is a perspective view of a main body of the coffee machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Coffee-boiler main body 2 Water tank 4 Top opening 6 Pipe 7 Heater 8 Extraction part 9 Container 10 Power switch

Claims (2)

[Claims] 1. A water tank formed integrally with a coffee brewer and supplied with water from an upper opening, a pipe connected to the water tank, and disposed in the middle of the pipe. A heater that heats water guided through a pipe to make hot water, an extraction unit that stores coffee powder and extracts coffee liquid by supplying the hot water from the pipe, and a container that stores the extracted coffee liquid And a power switch that is provided below the outer wall surface of the water tank and turns on / off the power to the heater.Water overflowing from the peripheral edge of the upper opening of the water tank travels along the outer wall surface of the water tank. A coffee brewer characterized in that the periphery of the upper opening of the water tank overflows from a portion other than a portion located above the power switch so as not to reach the power switch. . 2. The coffee brewing machine according to claim 1, wherein a range from a peripheral portion of an upper opening of the water tank located above the power switch to the power switch is bulged outward on an outer wall surface of the water tank. .