A grinding device comprises a grinding housing with mutually co-acting grinding bodies. A lower of the two grinding bodies is both driven and axially adjustable for the purpose of setting a grind size. An upper grinding body is removable. A grind size of the grinding device can be adjusted in absolute manner between a first extreme position and a second extreme position, corresponding to a fixed setting range between a minimal clearance between the two grinding surfaces and a maximum clearance between the two grinding surfaces. An extreme position of the adjustable grinding body is imposed by a stop which is encountered by the adjusting means in the relevant extreme position. A coffee machine uses the absolute grind size and/or a fine-tuning for an optimal contact time between coffee and through-flowing water.

A grinding device comprises a grinding housing with mutually co-acting grinding bodies. A lower of the two grinding bodies is both driven and axially adjustable for the purpose of setting a grind size. An upper grinding body is removable. A grind size of the grinding device can be adjusted in absolute manner between a first extreme position and a second extreme position, corresponding to a fixed setting range between a minimal clearance between the two grinding surfaces and a maximum clearance between the two grinding surfaces. An extreme position of the adjustable grinding body is imposed by a stop which is encountered by the adjusting means in the relevant extreme position. A coffee machine uses the absolute grind size and/or a fine-tuning for an optimal contact time between coffee and through-flowing water.

A grinding attachment for use with a coffee machine an upper grinding tool arranged inside a casing, and a lower grinding tool (11), which can be rotated rotatable relative to the upper grinding tool during a grinding operation. An adjustment device adjusts a degree of grinding of a material to be ground with the grinding tools. The upper grinding tool is attached to a support. The support for the upper grinding tool is displaceable in the vertical direction and is secured torque-proof on an element of the adjustment device. The adjustment device comprises a guide for the support which, during the rotating of the adjustment element, moves the support together with the upper grinding tool in the vertical direction for adjusting the grinding gap.

The invention relates to a grinder for grinding coffee beans. The grinder has a first grinding tool and a second grinding tool which form a grinding gap and are rotatable relative to each other to grind coffee beans in the gap. A force generation device is arranged for applying a force, which is adjustable during operation, to one or both of the first grinding tool and second grinding tool, which force is transferable to the coffee beans. The invention also relates to a method for grinding coffee beans with the grinder for preparing a hot beverage.

The invention relates to a grinder for grinding coffee beans. The grinder has a first grinding tool and a second grinding tool which form a grinding gap and are rotatable relative to each other to grind coffee beans in the gap. A force generation device is arranged for applying a force, which is adjustable during operation, to one or both of the first grinding tool and second grinding tool, which force is transferable to the coffee beans. The invention also relates to a method for grinding coffee beans with the grinder for preparing a hot beverage.

A coffee grinder configured to allow a user to easily determine and adjust the grind produced. The coffee grinder includes a sensor operably connected to an adjustment shaft which allows for precise detection and manipulation of the position of the grinding elements.

A coffee grinder configured to allow a user to easily determine and adjust the grind produced. The coffee grinder includes a sensor operably connected to an adjustment shaft which allows for precise detection and manipulation of the position of the grinding elements.

Coffee grinder-doser apparatus (1) with removable grinding chamber for extraction (10), with fast release; the proposed solution makes the grinding adjustment independent of the access to the grinding chamber and makes maintenance easier for the operator. An interface flange (113) is provided which is interposed in univocal position between the adjusting ring nut (115) and the fixed structure (112) of the chamber, which flange makes the coupling indirect of the ring nut (115) and of the extractable group (101) to said fixed structure, being screwed into said flange which is instead slidingly inserted. The locking involves a hooking and releasing system of fast and tensioned type, by means of levers (102) with cam tooth (123) mounted externally on said interface flange, which engage hooking the head of respective tie-rod groups (106) with elastic spring, putting them in traction, which are joined to said fixed structure of the chamber.

Coffee grinder for grinding coffee beans, comprising a container or supply element for coffee beans and a grinding device for grinding the coffee beans. The grinding device comprises a first and a second grinding element between which the coffee beans are ground, the distance between the two grinding elements in the grinding process determining the degree of grinding of the ground coffee, and at least one grinding element being driven by a motor. An adjusting element is provided, with which the distance between the two grinding elements can be adjusted by rotating an adjusting element, and a magnetic rotational position sensor, which directly or indirectly determines the absolute rotational position of this adjusting element as a measure of the distance and provides it for the further control of the coffee grinder.

A bean grinding device and a bean grinding coffee machine including the bean grinding device the bean grinding device includes a grinding assembly and an adjusting assembly; the grinding assembly includes a bean grinding chamber, an outer grinding wheel, and an inner grinding wheel; the outer grinding wheel and the inner grinding wheel are disposed inside the bean grinding chamber; the adjusting assembly includes at least two stages of adjusting mechanisms; the at least two stages of adjusting mechanisms includes a first adjusting mechanism and a second adjusting mechanism; the first adjusting mechanism and the bean grinding chamber are connected by means of a first track; the second adjusting mechanism and the outer grinding wheel are connected by means of a second track; and positions of the first adjusting mechanism and the second adjusting mechanism are relatively fixed in an axial direction.