COFFEE GRINDING MACHINE

Claims

1. A machine (1) for grinding coffee, comprising a machine body (8), a grinding chamber (3), a first grinder (4) and a second grinder (5), which move relative to each other for grinding coffee beans, and an outlet channel (20) for receiving ground coffee exiting the grinding chamber (3) and for transporting the ground coffee to a container (30), wherein the outlet channel (20) is connected to the machine body (8) by means of a common force of magnetic attraction, wherein the common force of magnetic attraction exceeds the weight of the outlet channel (20).

2. A machine (1) for grinding coffee according to claim 1, in which the total force of magnetic attraction exceeds the weight of the outlet channel (20) by a given amount corresponding to the amount of coffee powder settling on parts of the outlet channel (20) after a given number of cycles of grinding coffee beans.

3. The coffee grinding machine (1) according to claim 1, wherein the total magnetic attraction force is substantially equal to the weight of the outlet channel (20) after a given number of working hours or working days.

4. A machine (1) for grinding coffee according to any of the preceding claims, in which the outlet channel (20) comprises a connecting ring (24).

5. The coffee grinding machine (1) according to claim 4, wherein the connecting ring (24) comprises two radially protruding legs (25), wherein each of the radially protruding tabs (25) contains a magnet (28), and the body (8) of the machine contains a ferromagnetic material or a ferromagnetic plate (82) attached to the body (8) of the machine, or each of the radially protruding tabs (25) contains a ferromagnetic material, and the body (8) of the machine contains at least one magnet on each tab (25).

6. The coffee grinding machine (1) according to claim 4 or 5, further comprising a mechanical safety device (27, 28, 29, 81) to prevent the outlet channel (24) from falling due to excessive accumulation of coffee powder or accidental causes.

7. The coffee grinding machine (1) according to claim 6, wherein each of the protruding legs (25) has a through hole (26), and the body (8) of the machine has a threaded hole (81) on each of the two legs (25), wherein the mechanical safety device comprises a screw (27) screwed into each threaded hole (81) in such a way that a section (272) of the rod of the screw (27) protrudes relative to the leg (25), and the section (272) of the rod forms a fall path for the outlet channel (20) when the outlet channel is disconnected from the body (8) of the machine.

8. The coffee grinding machine (1) according to any of the preceding claims, further comprising a microswitch (40) for cutting off the power supply to the coffee grinding machine (1) when the outlet channel (20) is not connected.

9. The coffee grinding machine (1) according to claim 8, wherein the outlet channel (20) comprises a chute (23), wherein the chute (23) comprises a tongue (41), wherein the tongue (41) is configured to hold the microswitch (40) pressed in a configuration in which the outlet channel (20) is connected to the body (8) of the machine by means of a common magnetic force.

10. A coffee grinding machine (1) according to any of the preceding claims, wherein the total magnetic attraction force is equal to the weight of the outlet channel (20) plus at least 50 grams.

11. A machine (1) for grinding coffee according to any of the preceding claims, wherein the total magnetic attraction force is equal to the weight of the outlet channel (20) plus at least 50-200 grams or 50-150 grams.

12. A machine (1) for grinding coffee according to claim 10 or 11, in which the total force of magnetic attraction is equal to the weight of the outlet channel (20) plus at least 100 grams.

13. A coffee grinding machine (1) according to any of the preceding claims, wherein the total magnetic attraction force is equal to the weight of the outlet channel (20) plus 100-200 grams, such as 100-180 grams or 120-160 grams.