JPH0226435Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a coffee mill that grinds coffee beans housed in a case using a grinding body.

[Technical background of the invention]

Generally, a coffee mill has a structure in which a grinding body is provided at the inner bottom of a case that accommodates coffee beans, and a removable cap is placed over the top opening of the case. In this case, if the case is attached to the main body including the motor, the rotating shaft of the motor and the grinding body are connected, and coffee beans can be ground.

[Problems with background technology]

However, with the above configuration, as long as the case is attached to the main body, the motor can be energized even if the cap is not attached to the case. For this reason, the motor may be energized and start grinding coffee beans without the cap attached to the case, and in this case, coffee grounds may fly out from the top opening of the case and contaminate the surrounding area. There were some drawbacks.

[Purpose of invention]

This invention was made in consideration of the above circumstances,
Therefore, it is an object of the present invention to provide a coffee mill that can prevent the motor from being energized when the cap is not attached to the upper opening of the case.

[Summary of the idea]

In order to achieve the above object, the present invention provides a main body with an operating hole for externally operating a switch that opens and closes the energizing path to the motor, and the main body always has a closure that covers the operating hole. The member is movable, and a pressing portion is provided for moving the closing member to a position where the operation hole is opened when the case with the cap attached is attached to the main body. be.

[Example of idea]

Hereinafter, an embodiment in which the present invention is applied to a coffee making machine will be described with reference to the drawings. First, in FIG. 5 showing the overall configuration, reference numeral 1 denotes the main body of the coffee making machine, of which a cartridge type water storage tank 2 is provided on the left side in the figure, and a heating table 3 is provided on the lower right side. A well-known hot water generation mechanism consisting of a heating tube and a heater (not shown) is provided in the heating table 3, and the hot water is supplied into the heating tube in the water storage tank 2 and turned into hot water. 4 is a bottle placed on the heating table 3, 5 is a cup-shaped extractor placed above the bottle 4, and this is a cup-shaped extractor that is inserted into the main body 1 through a hook hole (not shown) formed on the outer periphery of the upper end. It is removably attached to the main body 1 by being inserted into a protrusion (not shown) formed in a shape. A paper filter 5a is housed inside the extractor 5, and an extraction port 6 is formed at the bottom, and a valve device 7 for opening and closing the extraction port 6 is provided. When the extractor 5 is attached to the main body 1, the valve device 7 comes into contact with the bottle lid 4a placed on the bottle 4 and is in an open state. 8
9 is a vertical shaft type motor disposed on the main body 1 on the left side of the extractor 5 in the drawing; 9 is a case removably attached above the motor 8 by, for example, bayonet engagement means; A crushing body 10 which is rotationally driven by a motor 8 is provided. A powder filter section 11 is provided on the right side of the case 9 by forming a large number of small holes (not shown), and this powder filter section 11 faces the upper opening of the extractor 5. Reference numeral 12 denotes a hood part for preventing coffee powder from flying out of the extractor 5 from the powder filter part 11;
an arcuate portion 13 that extends from the periphery of the extractor 5 to near the top opening of the extractor 5; and an arcuate portion 13 that extends outwardly from the lower end of the arcuate portion 13 to cover the outer portion of the arcuate portion 13 of the top opening of the extractor 5. The arcuate portion 13 and the lid portion 14 are integrally formed with the case 9. 15 is a spout formed in the arcuate portion 13 of the hood 12; 16 is a pour spout 15;
This valve device 16 is a valve device that opens and closes, and this valve device 16 closes when the air flow generated by the rotation of the grinding body 10 is blown out from the powder filter section 11 during grinding of coffee beans. This prevents coffee powder from flying out from the pouring spout 15. Reference numeral 17 denotes a pouring spout body which is rotatably provided above the pouring spout portion 15, and the hot water generated in the heating pipe of the hot water generation mechanism described above flows from this sprue body 17 to the pouring spout portion 1.
It is discharged within 5 minutes. Reference numeral 18 denotes a cap that is removably placed over the upper opening of the case 9 by means of, for example, bayonet engagement means. Reference numeral 19 denotes a lid that is provided on the upper surface of the main body 1 so that it can be rotated to open and close in the front and rear directions. 18 and the upper part of the hot water supply mouth body 17 are covered. 1 to 4, reference numeral 20 denotes an operation hole for operating a safety switch (not shown) for opening and closing the energizing path to the motor 8 from the outside. It is formed on the upper surface of the case 9 so as to be located near the case 9. An operating rod 21 is inserted into the operating hole 20 so as to be movable up and down. The operating rod 21 is always urged upward by a spring (not shown), and when the lid 19 is opened or the cap 18 is not attached, the upper end surface of the operating rod 21 is approximately the same as the upper end surface of the operating hole 20. They are moved to a position where they are flush (see Figures 2 and 3). In this position, the safety switch remains open and prevents the motor 8 from being energized. Reference numeral 22 indicates an operation hole 20 on the top surface of the main body 1.
The storage section 23, which is formed to open toward the storage section 22, is a closing member movably provided within the storage section 22, and a locking convex section 24 is formed on the upper surface of this closing member. Due to the biasing force of a spring 25 disposed in the storage hole 22, the closing member 23 is always in a position (hereinafter referred to as the closed position) that covers the operation hole 20 as shown in FIGS. 1 and 3. has been moved to. Reference numeral 26 denotes a pressing portion protruding from the outer periphery of the upper end of the cap 18. When the case 9 with the cap 18 attached is attached to the main body 1, the pressing portion 26 presses the locking convex portion 24 of the closing member 23. As shown in FIGS. 2 and 4, the closing member 23 is moved against the biasing force of the spring 25 to a position where the operating hole 20 is opened (hereinafter referred to as the open position). 27 is the lid 19
A protrusion protruding from the lower surface of the holder corresponding to the operating hole 20, which can be used only when the closing member 23 is in the open position.
As shown in FIG. 4, when the lid 19 is closed, the protrusion 27 enters the operating hole 20 and presses the operating rod 21 downward, thereby closing the safety switch and connecting the motor 8. energization is possible. still,
An operating switch 28 is provided on the front face of the main body 1 in series with the safety switch for switching on/off the power to the motor 8 and the heater of the hot water generating mechanism.

Next, the operation of the above configuration will be explained. To extract coffee liquid, open the lid 19 to store water in the water storage tank 2, and open the cap 18.
is removed from the case 9 and the coffee beans are stored in the case 9. When the cap 18 is removed from the case 9, the closing member 23 is moved to the closed position by the biasing force of the spring 25 and covers the operating hole 20. Therefore, after storing coffee beans, cap 1
8 into the case 9 and close the lid 19, the protrusion 27 will come into contact with the closing member 23, as shown in FIG. The switch remains open. In this state, even if the operation switch is operated, the motor 8 is not energized. Therefore, in this case, when the lid 19 is opened again and the cap 18 is attached to the case 9, the closing member 23 is moved to the open position by the pressing portion 26 as shown in FIG. When the lid 19 is opened and the lid 19 is closed, the projection 27 is inserted into the operation hole 2 as shown in FIG.
0, the operating rod 21 is pushed downward, the safety switch is closed, and the motor 8 can be energized. In addition, case 9 can be replaced with main body 1.
After removing the coffee beans from the case 9, the cap 18 is attached to the case 9, and then the case 9 is removed.
Even if it is reattached to the main body 1, the pressing part 2
Since the closing member 23 is moved to the open position by 6, even in this case, the motor 8 can be energized by subsequently closing the lid 19. When the operation switch 28 is operated, the motor 8 starts to be energized, the grinding body 10 rotates, and the coffee beans are ground. The coffee powder thus generated sequentially jumps out of the powder filter section 11 and falls onto the paper filter 5a in the extractor 5. After the coffee beans are ground, when the operation switch 28 is operated to energize the heater of the hot water generation mechanism, the water in the water storage tank 2 is sequentially turned into boiling water and is poured from the hot water supply spout 17 through the hot water pouring spout 15 onto the paper filter 5a. coffee grounds. The dripping hot water penetrates into the coffee powder and extracts the coffee extract from the coffee powder.
The coffee liquid is filtered through the paper filter 5a and dripped into the bottle 4 from the extraction port 6 and stored therein.

In the above embodiment, a safety switch is provided in the energizing path to the motor 8, and the safety switch is opened and closed in conjunction with the vertical movement of the operating rod 21. However, the present invention is not limited to this. The knob 28a of the operation switch 28 may be mechanically locked and unlocked in accordance with the vertical movement of the rod 21, and in this case, the safety switch is not required.

[Effect of idea]

As is clear from the above description, in the present invention, when the cap is not attached to the top opening of the case, the operation hole is covered by the closing member, so in this case, the operation hole is covered by the closing member. This has an excellent effect in that it is possible to prevent electricity from flowing, thereby preventing the occurrence of a situation where coffee beans are started to be ground without the cap attached.

[Brief explanation of the drawing]

The drawing shows one embodiment of the present invention.
Figures 3 and 2 are perspective views of the main parts shown in different states to explain the action, Figures 3 and 4 are longitudinal sectional front views of the same main parts, and Fig. 5 is a longitudinal sectional front view of the whole. . In the drawing, 1 is the main body, 8 is the motor, 9 is the case,
10 is a crushing body, 18 is a cap, 19 is a lid, 20
21 is an operating hole, 23 is a closing member,
25 is a spring, 26 is a pressing portion, and 27 is a projection.

Claims (1)

[Scope of utility model registration request] A main body equipped with a motor is equipped with a case in which a crushing body driven by the motor is installed and a removable cap is attached to an opening on the top surface, wherein the main body is provided with a energizing path to the motor. An operation hole for operating a switch to open and close from the outside, a closing member movably provided in the main body and always covering the operation hole, and a case provided in the cap and covered with the cap, the main body includes and a pressing part that moves the closing member to a position where the operation hole is opened in the installed state.