SU1510839A1 - Coffee grinder - Google Patents

Abstract

The invention relates to electrical household appliances, namely, coffee grinders. The aim of the invention is to increase reliability and reduce dimensions. The coffee grinder contains a hopper 1 with a lid 2, a cylindrical chamber 3 with a perforated wall and a tapered bottom 4, a limiter 5 of the volume of the working chamber with a concave lower part, a knife 6 bent at an angle equal to the taper angle of the lower part of the limiter 5, with blades bent off towards the bottom of the chamber, a container 7 for receiving ground coffee and enclosed in a casing 8, an electric motor with a switch 10 placed above the limiter 5. A valve 11 with a roller 12 is placed in the loading opening of the hopper, the limiter 5 of the chamber 3 is truncated nnogo cone, the apex of the concave bottom portion of the limiter abuts the motor housing 8, the upper wall of the chamber 3 for grinding is fastened to the bottom of the hopper, the switch is designed as a sliding contact and is connected to valve 11. The roller 12 ZP 2, 3 yl.

Description

9

(L

scrub

,

SP

00 00

Uch

The invention relates to electrical household appliances, namely, coffee grinders.

The purpose of the invention is to increase reliability and reduce size.

FIG. 1 shows a coffee grinder, a longitudinal section; in fig. 2 - the same, top view; in fig. 3 - switch in the form of a sliding contact.

The coffee grinder contains a hopper 1 with a lid 2, a cylindrical working chamber 3 with a perforated wall and a conical bottom 4, a limiter 5 of the volume of the working chamber with a concave lower part, a knife 6 bent at an angle equal to the angle of taper of the lower part of the limiter 5 with the blade bent to the bottom of the chamber, a container 7 for receiving ground coffee and enclosed in a casing 8, razmesh, above the limiter 5 electric motor 9 with a switch 10. The coffee grinder is equipped with a valve 11 with a roller 12 located in the loading opening of the hopper 5 chitel working chamber 3 is formed by a frustoconical bottom vertex of the concave portion limiter abuts the housing 2 of the motor 9, the upper wall of the grinding chamber is fastened to the bottom of the hopper, the switch is in, a slide contact and is connected to roller 12 flap 11.

The diameter of the upper wall 13 of the stopper 5 may be equal to or greater than the bottom 15

cycles (switching on the engine) and opening the hopper is sufficient to accelerate the electric motor. Under the influence of the knife, the coffee is ground and the fan-shaped jet is sifted through the perforated wall into the container 1. At the end of the grill, the electric motor 9 is turned off. A time relay can be used to turn off the motor. The container 7 is detached and the ground coffee is removed. After which the latter is placed in its place and the grinder is ready for re-cycling. The proposed coffee grinder is reliable in operation, it is compact, has small dimensions.

Claims (3)

1. Coffee grinder containing a hopper with a lid, a cylindrical chamber for grinding coffee with a perforated wall 20 and a tapered bottom, a working chamber volume limiter with a concave lower part having a cone shape, a knife bent at an angle equal to the taper angle of the lower part of the stopper with a blade bent to the bottom of the chamber, a container for receiving ground coffee and enclosed in a casing, an electric motor with a switch placed above the limiter, characterized in that, in order to increase reliability of operation and reduce the size in, coffee grinder25 her wall 14 limiter. Boot ZO is equipped with located in the unloading bunker 1 is advisable to provide a partition 15 with the formation of two compartments 16 and 17. Coffee grinder works as follows. The lid 2 opens and the hopper holes are filled with a valve with a roller, the working chamber’s volume limiter is shaped like a truncated cone, the top of the lower concave part of the limiter is adjacent to the motor casing, Qi coffee beans in the hopper 1. The lid 2 behind the wall of the chamber for grinding is fixed at the bottom of the roof. The switch 10 is rotated through a certain angle, the contacts close, the motor 9 is gaining momentum. Upon further rotation of the switch 10, the brush slides along the ring sliding contact, ensuring that the contacts are closed, and the flap 11 begins to open. The coffee beans begin to flow into the grinding chamber 3. Short time interval between the closure of the con40 hopper, and the switch is made in the form of a sliding contact and is connected to the valve roller. 2. A coffee grinder according to Claim 1, characterized in that the diameter of the upper wall of the stopper is equal to or greater than the lower wall of the electric motor. 3. The coffee grinder according to claim 1, wherein the feed hopper is provided with a partition to form two compartments. five cycles (switching on the engine) and opening the hopper is sufficient to accelerate the electric motor. Under the influence of the knife, the coffee is ground and the fan-shaped jet is sifted through the perforated wall into the container 1. At the end of the grill, the electric motor 9 is turned off. A time relay can be used to turn off the motor. The container 7 is detached and the ground coffee is removed. After which the latter is placed in its place and the grinder is ready for re-cycling. The proposed coffee grinder is reliable in operation, it is compact, has small dimensions. Invention Formula 1. A coffee grinder containing a hopper with a lid, a cylindrical chamber for grinding coffee with a perforated wall and a tapered bottom, a working chamber volume limiter with a concave lower part shaped like a cone, a knife bent at an angle equal to the angle of taper of the lower part of the limiter with blades , bent towards the bottom of the chamber, a container for receiving ground coffee and enclosed in a casing, an electric motor with a switch placed above the limiter, characterized in that, in order to increase reliability and reduce overall dimensions, coffee grinder  equipped with located in the unloading openings of the bunker with a valve with a roller, the stopper of the volume of the working chamber is made in the shape of a truncated cone, the top of the lower concave part of the limiter is adjacent to the motor casing, 35 grinding chamber wall mounted on bottom 40 hopper, and the switch is made in the form of a sliding contact and is connected to the valve roller. 2. A coffee grinder according to Claim 1, characterized in that the diameter of the upper wall of the stopper is equal to or greater than the lower wall of the electric motor. 3. The coffee grinder according to claim 1, wherein the feed hopper is provided with a partition to form two compartments. sixteen 2 Fig.: 5