JPS62585Y2 - - Google Patents

Description

[Detailed explanation of the invention] In most coffee mills, the wall that forms the grinding chamber and guides the ground coffee powder is made up of the coffee mill itself, and is made of plastic, which poses durability problems. It was hot. Coffee beans are approx.
The coffee powder is ground by a movable and fixed spoon that rotates at a high speed of 1000 rpm, hits the wall of the grinding chamber with great force, is guided to the powder outlet, and is stored in the powder container. If the plastic is scraped and mixed into the coffee powder, it will spoil the flavor when brewed. Further, if this condition progresses further, the distance between the movable mill and the peripheral wall increases, and the wind that blows out the powder weakens, causing the outlet to become clogged. If the wear progresses further, there is a risk of holes forming in the peripheral wall of the grinding chamber, which is very inconvenient. As a countermeasure against this wear, there is a method in which a bent metal plate is inserted, but in order to attach it to the cylindrical crushing chamber surrounding wall, an arc-shaped bending process is required, and a stopper part is not provided on the crushing chamber surrounding wall to fix it. However, there were many problems such as the difficulty of covering the entire circumference of the peripheral wall of the grinding chamber.

The present invention addresses such conventional problems, and embodiments of the present invention will be described below with reference to the accompanying drawings.

In the figure, 1 is a hopper that stores beans, 2 is a container that houses and fixes a motor 3 inside and forms a crushing chamber wall 4. A movable mill 5 is connected to the output shaft of the motor 3, and the movable mill 5 is opposed to the hopper. A mill mounting plate 7 is provided at the bottom of the hopper 1 for fixing the fixed mill 6 at positions at regular intervals. A mounting plate 9 that detachably holds the mill mounting plate 7 and forms an outlet 8 for the powder ground in the grinding chamber is attached to the container 2 by fixing a metal fitting 10 that prevents wear on the grinding chamber wall 4. . In FIG. 2, 15 is a water tank of a drip type coffee maker, 16 is a body that covers a heating part, 17 is a heat insulating plate that heats and keeps a glass container warm, and 18 is a lid of the water tank.

With the above configuration, coffee beans are stored in the hopper 1, sent to the grinding chamber sequentially through the center hole of the lower mill mounting plate 7, and ground by the rotational driving force of the movable mill 5 and the fixed mill 6, and then ground. The powder hits the metal fitting 10 that guards the chamber wall 4 and is guided through the outlet 8 into the powder container 11 . The metal fitting 10 has a plate thickness of 0.2~
This is a band-shaped pressed product of about 0.3 mm with both ends bent at right angles.When installing it on the wall of the grinding chamber, hold the bent part 11, insert it into the powder container wall while bending the entire metal fitting, and then attach the mounting plate 9. The bent portion 11 is fixed while being pushed in the circumferential direction by the side portion 12 of the holder. Also, in order to stop the vertical movement of the metal fittings 10, the mounting plate 1
A projection 13 is provided on the bottom surface of the metal fitting 10, and when the bottom surface of the projection 13 presses the upper end surface of the bent portion of the metal fitting 10, the metal fitting 10 is mounted without coming off even under expected vibrations. If the metal fittings are attached to the inside of the wall of the grinding chamber using the method described above, the metal fittings can be made of a thin plate with a thickness of about 0.2 mm, and the bending process can be done by simply bending both ends at right angles, instead of the conventional method of bending the entire body into an arc shape. Comparatively, both material costs and processing costs are low, and handling is easy. Further, according to this embodiment, since the entire circumference of the crushing chamber wall 4 can be covered, any part of the crushing chamber wall will not be worn out. Therefore, when installing the safety rod 14 to prevent fingers from entering the powder outlet,
Abrasion of the safety rod 14 can be easily prevented by simply using the metal fitting 10 that matches the shape. As is clear from the above description, according to the present invention, the metal fitting 10 is constantly pressed against the crushing chamber wall 4 by bending both ends of the metal fitting and pressing the bent portions in the circumferential direction with the side surface of the mounting plate.
The wall of the grinding chamber is protected by always maintaining the adhesion between the metal fittings and the wall.Furthermore, since the metal fittings are installed inside the grinding chamber, when actually grinding beans, there is no chance of dirt from coffee powder inside the grinding chamber after grinding. There are also effects such as hardly any powder adhesion is observed, and the commercial value of the coffee grinder can be increased in terms of hygiene and aesthetics. In particular, in the case of a coffee maker with a mill installed in a part of the coffee maker as in the above embodiment, it is difficult to move the main body when cleaning the mill, so it is necessary to prevent coffee powder from adhering to the inside of the grinding chamber. The present invention becomes even more useful.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of a coffee mill showing an embodiment of the present invention, FIG. 2 is an exploded perspective view of the same, and FIG. 3 is an enlarged exploded perspective view of the same essential parts. 1...Hopper, 3...Motor, 4...Crushing chamber wall, 5...Movable mill, 6...Fixed mill, 7...
Mill mounting plate, 9...Mounting plate, 10...Metal fittings.

Claims (1)

[Claims for Utility Model Registration] (1) A coffee mill consisting of a hopper for storing beans, a pair of opposing fixed and movable mills, a motor for rotationally driving the movable mill, and a container for receiving ground powder. A coffee mill characterized in that a metal fitting with both ends bent is installed on the wall surface of the grinding chamber around the movable mill, and the metal fitting is fixed by a mounting plate that holds a mill mounting plate provided with a fixed mill. (2) The coffee mill according to claim 1, wherein the metal fittings are fixed at the side and bottom surfaces of the mounting plate.