JPH0634761Y2 - Coffee mill - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Use) The present invention relates to a coffee mill designed to reduce noise when crushing coffee beans.

(Prior Art) In this type of coffee mill, a crushing body for crushing coffee beans is provided in the mill case, the crushing body is driven to rotate by a motor, and the inside is directed toward the opening at the lower end. A hopper with a gradually reduced size is provided above the crushed body so that coffee beans can be put into the mill case through the opening at the lower end of the hopper. In this case, since the coffee beans are put into the mill case little by little from the hopper, the noise when the coffee beans are crushed is reduced.

(Problems to be solved by the invention) However, in the above conventional configuration, when the coffee beans pass through the lower end opening of the hopper, the coffee beans may be aligned in a certain shape due to the peculiar shape of the coffee beans, and the opening may be changed. Bean jam may occur in the vicinity of the lower end opening having a small area.
In this case, unmilled coffee beans may remain in the hopper, or the bean jam may occasionally be cleared by vibration of a motor, etc., so coffee beans are discontinuously thrown into the mill case and crushed. However, there is a problem in that the generated noise is discontinuously generated, and the user feels uncomfortable.

Therefore, an object of the present invention is to provide a coffee mill which can reduce noise during milling, can prevent coffee beans from remaining in the hopper, and can prevent the user from feeling uncomfortable. is there.

[Structure of the Invention] (Means for Solving the Problem) A coffee mill of the present invention includes a mill case and a crushing body rotatably provided in the mill case for crushing coffee beans, and the crushing body is rotationally driven. A hopper provided with a motor and provided above the crushed body so as to put coffee beans into the mill case through the opening at the lower end and the inside of which gradually decreases toward the opening at the lower end. In the crushed body, a plurality of or one concave portion or convex portion is provided in a portion of the crushed body corresponding to the lower end opening portion of the hopper, and the concave portion or convex portion has come out of or has come out of the hopper. The feature is that the coffee beans are repelled in the direction of the hopper.

(Operation) According to the above means, the coffee beans that have gone out of or are about to go out of the hopper due to the concave or convex portions of the crushed body are repelled in the direction of the inside of the hopper. Since the is pushed and moved, the bean jam does not occur near the opening at the lower end of the hopper. Therefore, the coffee beans are not left in the mill case, and the coffee beans can be continuously fed into the mill case little by little from the hopper.

(Embodiment) A first embodiment in which the present invention is applied to a coffee maker will be described below with reference to FIGS. 1 and 2.

First, in FIG. 2, 1 is the main body of the coffee maker,
A water storage tank 2 is provided on the right side of the drawing, and a heating table 3 is provided on the lower part of the central part. A well-known hot water generating mechanism including a heating pipe 4 and a heater 5 is provided in the heating table 3, and water in the water storage tank 2 is supplied into the heating pipe 4 to be hot water. 6 is a bottle placed on the heating table 3, and 7 is a cup-shaped extractor arranged above the bottle 6, and the extractor 7 can be attached to and detached from the main body 1 by engaging means (not shown). It is installed. A paper filter 8 is laid inside the extractor 7.

Reference numeral 9 denotes a motor disposed on the left side of the main body 1 in FIG. 1, and a mill case 10 is detachably mounted above the motor 9. Reference numeral 11 denotes a pulverized body rotatably provided in the mill case 10, which is connected to a rotating shaft of a motor 9 via a coupling 12 and is rotatably driven by the motor 9 so that the coffee beans in the mill case 10 are rotated. Crush. 13
Is a powder filter portion having a large number of small holes, which is provided on the right side surface portion of the mill case 10 and faces the upper surface opening portion of the extractor 7. Reference numeral 14 is a hood portion for guiding the coffee powder discharged from the powder filter portion 13 into the extractor 7, which is provided so as to cover the powder filter portion 13 from the right side and to cover the upper opening of the extractor 7. There is. A hot water supply port 15 is provided above the extractor 7, and hot water generated by the heating pipe 4 of the hot water generating mechanism is discharged from the hot water supply port 15 to the extractor 7. Reference numeral 16 denotes a hopper whose inside is gradually narrowed toward the opening 16a at the lower end, which is provided so as to close the upper opening of the mill case 10 and is located above the crushing body 11 and is at the lower end. Coffee beans are put into the mill case 10 through the opening 16a. Reference numeral 17 denotes a control device arranged below the motor 9, which is composed of a timer, a control circuit of the motor 9, a control circuit of the heater 5, a start switch and the like.

Now, the crushed body 11 will be described in detail with reference to FIG. The crushed body 11 is composed of blade parts 17, 17 and a pick part 18. Here, in the crushed body 11, a picking portion
Reference numeral 18 corresponds to the lower end opening 16a of the hopper 16, and a plurality of, for example, four recesses 18a are radially provided in the knob portion 18.

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

When the start switch is turned on while the coffee beans are stored in the hopper 16, the motor 9 is energized and the crushed material is crushed.
11 is driven to rotate. When the crushed body 11 rotates, the hopper 16
The coffee beans therein are put into the mill case 10 little by little through the gap between the opening 16a at the lower end and the picking portion 18 of the pulverized body 11, and are pulverized by the blade portion 17 of the pulverized body 11. At this time, a part of the coffee beans that have come out of or are about to come out of the hopper 16 hit the concave portion 18a of the rotating picking portion 18 and are repelled toward the inside of the hopper 16, and the repelled coffee beans are hopper 16 Beat the bottom of the coffee beans inside. Since the operation of repelling the coffee beans is frequently performed, the coffee beans in the hopper 16 are constantly shaken and their positions are gradually changed. For this reason, unlike the prior art, since the coffee beans are not aligned, it is possible to prevent the bean jam from occurring near the lower end opening 16a of the hopper 16. Therefore, it is possible to prevent the coffee beans from remaining in the hopper 16, and since the coffee beans are continuously put into the mill case from the hopper little by little, the noise of grinding the coffee beans in the mill case (the beans are little by little). To low level noise)
The noise can be prevented from giving a user an unpleasant feeling, and a preferable feeling can be provided. In this case, the crushed body 11
Since the knob 18 is simply provided with the recess 18a, it is possible to achieve the above-described effects with a simple configuration.

FIG. 3 shows a second embodiment of the present invention, and the difference from the first embodiment will be described. In this FIG.
Reference numeral 19 denotes a knob portion that replaces the knob portion 18, and the knob portion 19 is provided with four convex portions 19a in a radial shape instead of the concave portions 18a. In this case, some of the coffee beans that have gone out of or are about to come out of the hopper 16 hit the protrusions 19a of the rotating knob 19 and are repelled toward the inside of the hopper 16. Therefore, also in the second embodiment, it is possible to obtain substantially the same operational effects as in the first embodiment.

In each of the above embodiments, four concave portions 18a or four convex portions 19a are provided, but five or more or one to three.
Individual pieces may be provided. In addition, the concave portion 18a or the convex portion 1
The shape of 9a is not limited to the above-described embodiments, and may be any shape that repels coffee beans that have come out of or are about to leave the hopper.

[Effects of the Invention] As is apparent from the above description, the present invention includes a mill case and a crusher rotatably provided in the mill case for crushing coffee beans, and a motor for rotationally driving the crusher. Further, there is a hopper located above the crushed body so as to load coffee beans into the mill case from the opening at the lower end, and the inside of which is gradually reduced toward the opening at the lower end. Then, a plurality of or one concave or convex portion is provided in a portion of the crushed body corresponding to the lower end opening of the hopper, and the coffee beans that have gone out of or have come out of the hopper by the concave or convex portion are provided in the hopper. Since it is configured to repel in the direction of, the noise during milling can be reduced, but coffee beans can be prevented from remaining in the hopper, and the user is uncomfortable. It has an excellent effect that it can be eliminated.

[Brief description of drawings]

1 and 2 show a first embodiment of the present invention. FIG. 1 is a perspective view of a crushed body, and FIG. 2 is a vertical sectional front view of the whole. FIG. 3 is a view corresponding to FIG. 1 showing a second embodiment of the present invention. In the drawing, 9 is a motor, 10 is a mill case, 11 is a crushed body, 16
Is a hopper, 16a is a lower end opening, 18 and 19 are knobs, 18a is a concave portion, and 19a is a convex portion.

Claims (1)

[Scope of utility model registration request] 1. A mill case, a crushing body rotatably provided in the mill case for crushing coffee beans, a motor for rotationally driving the crushing body, and an opening at a lower end located above the crushing body. A hopper provided so as to put coffee beans into the mill case, and the inside of which is gradually reduced toward the opening at the lower end thereof, and the lower end opening of the hopper of the pulverized body and A coffee mill characterized in that a plurality of or one concave portion or convex portion is provided in a corresponding portion, and the concave or convex portion is adapted to repel coffee beans that have gone out of or are about to go out in the hopper. .