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Brewing unit

A brewing unit and brewing technology, applied to beverage preparation devices, household appliances, applications, etc., can solve the problems of too high requirements for the dimensional accuracy of the inner peripheral surface of the guide sleeve, and troublesome manufacturing.

Active Publication Date: 2012-07-25
WIK FAR EAST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it may not be possible to place too high requirements on the dimensional accuracy of the inner peripheral surface of the guide sleeve
In the brewing unit design known from DE 20 2007 001 176 U1, the guide sleeve has guide parts machined with corresponding dimensional accuracy, but this embodiment is too complex to produce

Method used

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Experimental program
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Embodiment Construction

[0017] In the exemplary embodiment shown, the brewing unit 1 for a coffee machine not shown in the drawing and in the form of a fully automatic coffee machine has a housing 2 formed by two housings. The two housings are marked with references 3 and 3.1. The brewing unit 1 is designed to be inserted horizontally into the coffee machine and vice versa. For this purpose, the housing 2 is designed to form side guide strips 4, 4.1 which are inserted into corresponding grooves in the brewing unit chamber of the coffee machine. Brewing unit 1 in its figure 1 There is a connecting piece 5 on the right end side of the hood, through which hot water can be injected into the brewing unit 1 . Furthermore, the brewing unit 1 has a spindle drive with a rotatably mounted threaded spindle. At one end of the screw there is a toothed connecting piece 6, which is connected to the screw in a torque-transmitting manner. The connecting piece 6 engages with a matching connecting piece when the bre...

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PUM

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Abstract

The invention relates to a brewing unit (1) of coffee maker. The unit has a brewing cylinder (8) driven by a spindle drive and capable of moving along the longitudinal axis direction of the brewing unit (1). The spindle drive includes a threaded spindle (7) that is arranged parallel and at a distance to a longitudinal axis (15) of the cylinder(8), the screw thread of the threaded spindle is meshed with a follower (9) of the brewing cylinder (8) to derive the brewing cylinder. In addition, the spindle drive includes a guide rod (10) is arranged parallel and at a distance to the threaded spindle (7) and has a guiding sleeve (11) that is assigned to the cylinder (8) and can move on the guide rod (10). Apart from the guiding sleeve (11), at least one guide rail (12, 12.1) is mounted on the outer lateral surface of the cylinder (8), and the guiding element is only partly supported on the guide rod (10) with respect to circumference of the rails.

Description

technical field [0001] The invention relates to a brewing unit of a coffee machine, the brewing unit comprises a brewing cartridge which is movable in the direction of the longitudinal axis of the brewing unit and driven by a spindle drive having a and a lead screw arranged at a distance from the longitudinal axis, the screw thread of which is arranged to engage with a follower associated with the brewing cartridge for driving the brewing cartridge, the brewing unit also includes a screw parallel to the lead screw and The guide rods are spaced apart from the lead screw and have guide bushes which are assigned to the brewing cartridge and can move on the guide rods. Background technique [0002] For brewing coffee, coffee machines capable of delivering freshly brewed coffee portion by portion, in particular cup by cup, have a brewing unit. The brewing unit itself has a brewing cartridge into which ground coffee powder is added after starting the brewing cycle, compacted and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A47J31/46A47J31/40
CPCA47J31/3614A47J31/3609A47J31/3619
Inventor 迪特马尔·贝克沃尔夫冈·格里克沃纳·卢克
Owner WIK FAR EAST