RU2000735C1 - Accessory to mixer to grind coffee - Google Patents

Abstract

Usage: in everyday life, for grinding coffee The essence of the invention: the nozzle for the mixer for grinding coffee contains a bowl body, a lid, a locking mechanism for attaching the bowl, a bearing located in the last shaft, on one side of which the knife is fixed. and on the other, a plastic sleeve, while a locking wire ring is installed between the end of the bearing and the end of the plastic coupling half, mounted in a groove grooved on the shaft. 2 silt

Description

The invention relates to household appliances, and in particular to devices for grinding coffee.

A device for grinding coffee is known, comprising a housing, a grinding bowl with a cry.ike on the inside of which there is a protrusion. At the lower end of this tongue, a conical recess is made. A bowl with a plastic sleeve through which the shaft passes, on which the EMN knife is mounted. The upper end of the shaft is made of con /; to enter the conical protrusion of the cover, and the lower end of its friction, io, is connected to the coupling half, having c. a tooth. The latter, in conjunction with the y5i half coupling of the drive shaft of the mixer, transmit the rotation to the shaft and, accordingly, to the knife of the coffee grinder.

The advantage of this device is r; rp stratification and increased consumption of constituent material in its manufacture

1L, there is also a device for crushing food products, mainly coffee, containing a body, bowl, lid, e - and K1 locks. The bowl is fixed in (with the help of a sleeve, in which the kiftran is bearing. In the last case, 1 fell, with one shuron of which - 1 g s1 is attached to the floor a coupling having and; a tooth, for transmitting rotation from the drive stool, on the other hand, a knife is fastened with washers placed between the end of the bearing and the end of the coupling half on the shaft.

The disadvantage of this device is that, rotating at a high speed, the knife rises under the action of centrifugal forces. As a result of this, the gap between the end of the bearing, the washers and the end of the plastic coupling half disappears. The surfaces of these elements come into tight contact with each other. Under the influence of compressive forces, high heat generation is generated in the surfaces rubbing against each other, which is harmful especially at the point of contact of the end surface of the plastic coupling half. The material of the coupling half softens under the influence of temperature and the rigidity of the shaft fastening in it is violated. For this reason, the device has low reliability and a sharply limited time for using it during operation.

The purpose of the invention is to increase the reliability of the device.

The goal is achieved in that a locking wire is placed between the end of the bearing and the end of the plastic coupling half

5

5 0 5

0

fifty

5

0

5

0

a ring mounted in a groove machined on the shaft.

When conducting patent research, no technical solutions were found discrediting the novelty and materiality of the differences of the claimed invention.

Fig. 1 shows a nozzle for a mixer for grinding coffee (general view); figure 2 - node I in figure 1.

The nozzle for the coffee grinder comprises a housing 1, a bowl 2, a lid 3, and a locking mechanism (not shown). The bowl 2 is mounted in the housing 1 by a sleeve 4. in which the bearing 5 is mounted. A shaft 6 is mounted in the bearing 5, on one side of which a plastic coupling half 7 with spline teeth 8 is rigidly fixed to transmit rotation from the mixer drive shaft, s on the other side, a knife 9 is attached. Between the end face of the bearing 5 and the end face of the coupling half 7, a locking wire ring 10 is installed, which is mounted in a groove grooved on the shaft 6.

The nozzle to the mixer for grinding coffee works as follows.

After installing the housing 1 on the mixer seat, where the coupling half of the coupling 7 is connected with the counter part of the mixer coupling half, they pour it into the bowl 2, where the grinding knife 9, coffee or other product is placed, Then they take the lid 3 and close the bowl 2. The end of the lid 3 acts to a locking mechanism that turns on the mixer drive motor. The shaft b, and therefore the grinding knife 9, receive rotation through the coupling half 7. The grinding process occurs. At the beginning of this process, under the action of centrifugal forces, the grinding knife 9, rotating like a propeller, rises. As a result of this, the clearance between the end face of the bearing 5 and the torus. the entire plastic coupling half 7 is reduced, but until then. until the end surface of the bearing 5 contacts the surface of the locking wire ring 10. In this case, the locking ring 10, sliding along the groove of the shaft b, acts as a bearing and does not allow the surface of the end face of the plastic coupling 7 to experience friction. Due to the small size of the surfaces rubbing against each other with a low coefficient of friction, the heat release in this place is low, which significantly improves the operating conditions of the device and increases its reliability. At the end of the grinding process, the entire nozzle is removed from the mixer seat. The grinding stops. Cover 3 and contents removed

cups 2 are poured into the prepared container.

cl. A 47 J 12/06, 1990.

Copyright certificate No. 745495. cl. A 47 J 42/56, 1980.

. (56) Copyright 1591942.

certificate No.

Claims (1)

The claims MIXER NOZZLE FOR GRINDING COFFEE, comprising a cup body, a cover, a locking mechanism, a cup mounting sleeve, a bearing mounted in the sleeve, housed in the last shaft. with one Riga 1 on the side of which the knife is fixed, and on the other, a plastic coupling half, characterized in that a locking wire ring is installed between the bearing face and the plastic coupling end face, mounted in a groove grooved on the shaft Riga g