| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lower-noise drive for a coffee brewing device, which is designed in a simple and compact manner in terms of its construction, and which can be produced in a cost-efficient manner. <P>SOLUTION: The drive 1 for a coffee brewing device 2 includes: a first gearwheel having an internal thread that is pivot-mounted to an external thread 21 of a guide cylinder 20 so that the first gearwheel can be moved along a cylinder axis 22 of the guide cylinder in response to a rotation; a second gear wheel 30 for driving the first gearwheel along the cylinder axis; a housing 50, in which the first gearwheel is accommodated; and a brewing piston coupled to the housing so that the brewing piston and the first gearwheel can be moved along the cylinder axis. The drive is provided with a linear guide 80 for guiding the housing, while the linear guide running parallel to the cylinder axis is engaged with the housing such that a movement of the housing opposite to the linear guide in a radial direction to the cylinder axis is prevented. An axis of rotation 32 of the second gearwheel is arranged in a provided distance relative to the linear guide. <P>COPYRIGHT: (C)2010,JPO&INPIT |
