EP3345515A2 - Knife storing unit - Google Patents

Abstract

A knife storage unit (1) with a knife magazine (4) for storing a knife (2), wherein a magazine opening (5) is provided for inserting the knife (2) into the knife magazine (4), wherein at least one grinding element (10 ) having grinding device (9) for grinding a knife edge of the knife (2) is proposed, with which the high quality of the ground knife or the sharpness of the knife is realized without great effort and / or without great skill of the user. This is achieved by providing at least one knife sensor (6) for detecting the knife (2) introduced at least partially through the magazine opening (5) into the knife magazine (4).

Description

The invention relates to a knife storage unit with a knife magazine for storing a knife according to the preamble of claim 1.

State of the art

There are already knives sheath known, the knife sheath, which is fastened to a belt of the user, has a sharpening or grinding device (see, eg DE 32 46 100 40 C2 . US 27 67 530 ). Hereby, the blade is ground when inserting and removing the knife from the sheath.

In the WO 2010/148430 A1 Not only is such a knife sheath disclosed with a mechanical sharpening device, but also as a variant of a so-called knife block for several knives, the knife block has several knife sheaths or openings of the knife magazines, so that hereby several kitchen knives can be stored. In this knife block, a special knife sheath is equipped with a grinding device.

Also the US 4,866,845 discloses a knife block with mechanical grinder, wherein by inserting the knife into the knife block or the knife magazine by wedge-shaped grinding elements, the knife is ground not only when inserting, but also when pulling out, so that after use or for the next use, the knife or the blade of the knife something is sanded.

A disadvantage of such blade sheaths or knife magazines with grinding / sharpening devices, however, is that the quality of the sharpening or grinding and thus the quality of the knife for subsequent use u.a. due to wear of the grinding elements, etc. worse than with a manual grinding, for example by means of a so-called sharpening steel or grindstone.

In addition, electrically operated Schleifbeziehungsweise sharpening machines for knives in use (see, eg DE 10 2008 033 547 A1 ). The disadvantage here, however, is that as with the manual grinders, a feeling with the best possible manual movement of the knife with respect to the grinder must be learned only by long practice or experience to achieve a comparatively high quality of the cut or the sharpness of the knife , Although this skill is available to professional users such as butchers, cooks, etc., it is rarely found among non-professional users.

Purpose and advantages of the invention

The object of the invention is in contrast to propose a knife storage unit, with the high quality of the ground blade or the sharpness of the knife is realized without great effort and / or without great skill of the user.

This object is achieved on the basis of a knife storage unit of the aforementioned type by the features of claim 1. The measures mentioned in the dependent claims advantageous embodiments and developments of the invention are possible.

Accordingly, a knife storage unit according to the invention is characterized in that at least one knife sensor is provided for detecting the knife introduced at least partially through the magazine opening into the knife magazine. Preferably, the knife sensor is designed as an electrical and / or electronic knife sensor.

With the aid of such a knife sensor, in particular an electrical and / or electronic knife sensor, completely new possibilities are opened up for grinding the knife v. A. significantly improve during the storage period. As a result, with the next use of the knife, even after a long storage time, a high-quality ground knife available. Thus, non-professional users in private households with the knife storage unit according to the invention also receive knives, e.g. Kitchen knives etc., in high quality.

Advantageously, the knife sensor according to the invention triggers a (subsequent) grinding process or generates an (electrical) signal for an electrical and / or electronic grinding device of the knife storage unit. Thus, by detecting the insertion or the insertion of the knife into the knife magazine through the magazine opening with the aid of the inventive (electric and / or electronic) knife sensor advantageously initiated a grinding phase, in particular automatically started. Preferably, in this case an electrical and / or electronic control unit for controlling the grinding process or the knife storage unit and / or grinding device is provided.

Accordingly, according to the invention, it can be achieved that each knife stored in the knife storing unit according to the invention undergoes a grinding process on / after insertion, or grinding of the knife is carried out by means of the grinding device. Consequently, each knife is always advantageously ground by the user the next time it is used, without, for example, requiring manual and / or separate grinding by the user.

In advantageous variants of the invention, the knife sensor is designed, for example, as a Hall sensor, light barrier, capacitive proximity switch, inductive proximity switch, electromagnetic coil element, piezoelectric element, electrical switch with probe element or mechanical switch element and / or as infrared sensor or the like.

Such a knife sensor advantageously generates a sensor signal which, for example, is transmitted to an electrical control unit and as a result the electric grinding apparatus is started or put into operation.

Advantageously, the grinding device comprises at least one (electric) drive unit for adjusting the grinding element. For example, the grinding device may comprise an electric motor which rotatably drives the grinding element about a rotation axis. Hereby, an advantageous grinding of the blade of the knife or the cutting edge of the knife is achieved by rotary grinding movement.

It is conceivable that a stationary, but rotatable grinding element is provided. This means that the grinding element can rotate / rotate on the one hand about a rotation axis, but on the other hand, the rotation axis or the Storage / positioning of the grinding element is not adjustable, ie is arranged stationary. With such, preferably immediately "behind" or arranged in the magazine opening grinding element, for example, immediately upon insertion / removal of the knife in the knife magazine or when passing the knife through the knife opening by (relatively fast) rotational rotational movement of the grinding element, the knife or the Blade be ground.

In a preferred embodiment of the invention, the grinding device comprises at least one transport unit for adjusting the grinding element or the axis of rotation / mounting of the grinding element along a transport path. This ensures that the grinding is realized above all after the insertion process, so that in the knife magazine (usually very long time) stored knife is ground. Thus, a comparatively long-lasting grinding with a particularly high grinding quality can be realized.

This means that the knife edge does not necessarily have to be ground during the relatively short insertion process of the knife into the knife magazine, but that, if necessary, the stored knife or the knife edge is ground with the aid of the grinding device only when inserting, but essentially only after the insertion process. In this case, the grinding element or the grinding device is then adjusted / transported along the transport path or along the knife or the knife blade.

Thus, according to the invention there is the advantageous possibility that the grinding process is formed significantly longer than the extremely short insertion process. For example, multiple times along the knife edge, the grinding element adjusted or transported several times back and forth to an advantageous sharpening or a particularly high quality of the ground To reach Messers. It has been shown that not a strong or "powerful" grinding process generates sharp knives, but that rather a multiple, "easy" grinding of the knife edge or the knife edge edge is advantageous and generates a significantly higher quality of sharp knives. Accordingly, for example, a multiple adjustment along the entire knife edge generate particularly sharp blades. Alternatively or in combination with this, with a comparatively high rotational speed of a rotating grinding element, a particularly good quality of the grinding or of the ground knife can likewise be achieved.

Preferably, a display unit, such as a light emitting diode or the like, may be provided to inter alia. to indicate the grinding or the grinding process to the user. This makes it possible in an advantageous manner that the user does not take the knife too early or during the grinding process from the knife magazine and thus would have a not optimally ground knife.

Advantageously, the transport path essentially corresponds to a contour of a curved knife edge. Usually, knives, in particular household knives or the like, are equipped with a curved knife edge or a curved blade. The formation of the transport unit in such a way that the transport path substantially corresponds to a curved contour of a curved knife edge, improves the grinding result.

In addition, an adaptation of the transport path or the curved transport path of the grinding element to the curved contour of each inserted or inserted into the knife magazine knife can be provided in an advantageous manner. Preferably, an adjustment unit for adapting the transport path to the contour or the curvature of a curved knife edge is provided. Advantageously, the transport unit or the adjustment unit to a pressing device or printing device to generate a contact force or a grinding force of the grinding element with respect to the knife edge.

Advantageously, the transport unit comprises at least one transport drive. Preferably, the transport drive is designed as an electric motor, so that, for example, in relation to the drive unit of the grinding device, a second or separate electric motor is provided. Hereby, a decoupling of the (fast) rotational speed from the (slow) transport speed of the grinding element can be implemented in an advantageous manner. Accordingly, each speed can be adapted to the respective requirements.

Optionally, the transport drive can also be formed as a drive unit of the grinding device, so that only a single electric motor or drive is provided both for grinding and for the transport of the grinding element. Perhaps a gear or the like is provided so that e.g. a (fast) rotational speed and a different (slow) transport speed of the grinding element can be realized.

In a preferred variant of the invention, the transport unit is at least partially pivotable about a pivot axis. It has been found that an advantageous adaptation of the transport path of the grinding device along the mostly (differently) curved knife edges can be realized by such an advantageous pivotable mounting of the transport unit. This means that, for example, a substantially straight transport or guide rod and / or a linear guide element or transport element is provided on / along which the grinding element or the grinding device is arranged along adjustable or is guided / transported. At the same time, the advantageous adaptation of the transport path of the grinding device or of the grinding element along a curved knife edge or along the curved contour of the knife, esp. The blade, realized by the pivoting of the transport unit or the transport element to the advantageous pivot axis. This can, for example, be dispensed with a complicated sensory determination of the (different) curved contour of the blade and the generation of a curved transport path without correspondingly large constructional, mechanical and / or electronic effort.

Preferably, the transport unit comprises at least one spring element for generating a contact force of the grinding element. With the help of this advantageous spring element on the one hand, the contact pressure of the grinding element can be generated on the knife to be ground or on the knife edge and at the same time an adjustment of the transport path to the (curved) contour or to the curved knife can be realized. Thus, an advantageous spring element to generate the pivoting of the transport unit about the pivot axis and also the adaptation to the Kontor and at the same time generate the contact pressure of the grinding element to the knife or to be sharpened knife edge. Hereby, the constructive and economic effort to adapt to different knives or different curved blade contours can be reduced.

Advantageously, a toothed rack is provided as the transport element, on which the grinding device or the grinding element (s) are transported along with the help of the transport drive or an electric motor with at least one gear wheel in an advantageous manner. This means that the grinding element can be transported / adjusted along the rack back and forth. An electric motor is preferred as the drive unit for Rotating or rotating the / the grinding elements arranged on the rack, so that this electric motor or the grinding device with the / the grinding elements along the rack is transportable. The rack can advantageously be rotatably mounted at one end and formed with a spring element such as a coil spring, leaf spring, elastomer or the like can be acted upon with a pivoting force. Thus, the adaptation to differently curved contours of the knife edges and / or different contact forces can be implemented without much effort.

Alternatively, other transport elements or transport units such as a stroke-piston cylinder unit, an electromagnetic linear drive or linear motor, a cable drive or the like may be provided.

Preferably, at least one transport sensor for detecting the transport path and / or at least one end position of the transport path of the grinding device and / or of the / the grinding elements is provided. Preferably, at least two sensors are provided at two spaced-apart positions of the transport path, in particular at its two ends / end regions, in order to detect the beginning and the end of the transport path or the position of the cutting device, in particular of the cutting element (s), and an advantageous one Generate control signal or sensor signal. By means of one or more such sensors it can be achieved that advantageously a signal for the electrical and / or electronic control unit is generated, so that e.g. the transport direction of the transport unit is variable or so that the grinding device or the / the grinding elements in an advantageous manner back and forth or back and forth along the knife edge are transportable.

For example, monitoring the number of Transport paths are provided along the knife edge or along the transport path. This means that it is detected and controlled, for example with the aid of the advantageous electronic control unit, that the grinding device or the grinding element is guided or transported, for example, 3 times, 5 times, 10 times along the knife edge in order to generate an advantageous grinding result.

Preferably, the grinding device or the grinding element is once adjusted along the transport path or along the knife edge and once back / transported. It has been found that with the aid of an electrically driven or electromotive rotation of the grinding element, in particular with a relatively high rotational speed, a single back-and-forth grinding operation is sufficient to achieve a high quality of the knife edge or the ground blade.

Advantageously, the knife storage unit is designed as a first knife storage module for coupling and / or connecting to a second knife storage module. This ensures that a modular knife block or a modular knife storage unit can be realized and is adaptable to the number of knives that the user would like to use or own. At the same time this ensures that each user's knife is equipped with a separate grinding device or a separate grinding mechanism, so that each knife, which is stored in the respective knife magazine, can be ground for the next use according to the invention.

In a particular embodiment of the invention, at least one plug-in device is provided for transmitting energy between the first and the second knife storage module. For example, the first knife storage module comprises a mains connection or a mains plug and / or a transformer for the electrical power supply of the blade storage unit or the electrical grinding device and / or the electrical transport unit. Thus, for example, the electrical network energy from the first knife storage module, optionally converted by means of a converter / transformer in low voltage of about 12 or 24 volts, transmitted or forwarded by means of the advantageous plug device to the second knife storage module and / or to a third, fourth or fifth knife storage module become. Thus, advantageously, a "master blade storage module" with power plug device or the like and one or more "slave blade storage modules" may be provided. This reduces the constructive and also economical effort for the realization of the second, third, fourth, fifth or sixth knife storage module. Thus, an economically favorable adaptation to the number of meters used by the user can be made.

Optionally, a mechanical coupling or connection such as a latching unit, clamping unit or the like is provided for coupling or connection of the first with a second or with a third blade storage module. Preferably, the plug-in device, in particular the electrical plug-in device is also designed as a mechanical plug-in device. This means that an electrical energy transfer by means of the advantageous plug-in device and at the same time a mechanically secure or fixed connection / fixing of the two adjacent blade storage modules can be realized.

embodiment

An embodiment of the invention is illustrated in the drawing and we reference to the figures below explained.

Figur 1

schematisch ein Schnitt durch eine erste Messeraufbewahrungseinheit gemäß der Erfindung mit Messer,

Figur 2

schematisch eine Schleifbahn einer Schleifscheibe der ersten Messeraufbewahrungseinheit gemäß Figur 1 mit Messer,

Figur 3

schematisch, perspektivisch ein Ausschnitt eines Antriebssystems der ersten Messeraufbewahrungseinheit gemäß Figur 1 mit Messer,

Figur 4

schematisch, perspektivisch ein vergrößerter Ausschnitt des Antriebssystems der ersten Messeraufbewahrungseinheit gemäß Figur 1,

Figur 5

schematisch ein Schnitt durch eine zweite, modular ausgebildete Messeraufbewahrungseinheit gemäß der Erfindung mit Messer und

Figur 6

schematisch eine steckbare Moduleinheit mit der zweiten Messeraufbewahrungseinheit gemäß Figur 5 und drei weiteren Messeraufbewahrungseinheiten.

In detail shows:

FIG. 1

1 schematically a section through a first knife storage unit according to the invention with knife,

FIG. 2

schematically a grinding path of a grinding wheel of the first knife storage unit according to FIG. 1 with a knife,

FIG. 3

schematically, in perspective, a section of a drive system of the first knife storage unit according to FIG. 1 with a knife,

FIG. 4

schematically, in perspective an enlarged section of the drive system of the first knife storage unit according to FIG. 1 .

FIG. 5

schematically a section through a second, modular knife storage unit according to the invention with a knife and

FIG. 6

schematically a plug-in modular unit with the second knife storage unit according to FIG. 5 and three other knife storage units.

In the FIGS. 1 to 4 schematically a first blade storage unit 1 with a kitchen knife 2 or components thereof is shown. The knife storage unit 1 is referred to as a so-called "knife block" 3 and comprises a knife sheath 4 or a knife magazine 4 with a magazine opening 5 in the sense of the invention.

The knife block 3 has a first sensor 6, which detects the presence or the insertion of the knife 2. In addition, two end sensors 6, 7 are provided, which detect a grinding of the blade 2 or a position of a grinding unit 9, esp. A first and a second end of a transport path 11 and a grinding section 11 of the grinding unit 9. The curved grinding path 11 and the transport path 11 of a grinding wheel 10 is mainly in FIG. 2 illustrated. In FIG. 2 is a schematic, stroboskopartige sequence of different positions of the grinding wheel 10 along the grinding path 11 shown.

The grinding unit 9 comprises e.g. a transport motor 12 and a grinding motor 13, the latter driving the rotating about a rotation axis grinding wheel 10. Grinding motor 13 with grinding wheel 10 are by means of the transport motor 12 and a gear 15 along a (curved) rack 14 adjustable or driven stored / guided. The rack 14 can be formed both curved and rectilinear in order to follow a curved contour of a cutting edge or cutting edge of the blade 2 in accordance with this during the grinding process. Especially in the variant with a substantially rectilinear rack 14, the rack 14 is preferably pivotable on a pivot axis and by means of a spring element, e.g. Spiral spring or leaf spring or rubber / elastomeric element, etc., with a directed against the blade / cutting edge of the blade 2 contact force acted upon. This "follows" the grinding unit 9 advantageously u.a. different, curved or straight cutting edges or knife contours.

With the aid of the end sensors 7, 8 or limit switches 7, 8, a change in the transport direction, preferably with the lower sensor 7, and a start or end of the grinding process with the upper end sensor 8 detected or controlled. For this purpose, a non-illustrated electronic / electrical control unit is present.

In FIG. 5 a second knife storage unit 1 with kitchen knife 2 is shown. The knife storage unit 1 is in turn designed as a so-called "knife block" 3, wherein in addition a power supply 16 or electrical power supply with mains plug is shown. Accordingly, this blade storage unit 1 is designed as a so-called "master" 1, to which one or any number of so-called "slaves" can be connected as blade storage units 1 according to the invention (cf. FIG. 6 ). Thus, the "master" by means of a plug 17 which can be coupled / connected to a socket 19 and with which electrical energy for the grinding units 9 and "slaves" is transmitted (see. FIG. 6 ). Without further illustration, an (additional) mechanical coupling / Verrasterung or the like can be provided. In FIG. 5 the plug 17 has an optional cap 18, ie when no "slave" is connected.

In the FIG. 5 illustrated, second knife storage units 1 comprises for supplying power to the grinding unit 9, an electrical cable 21, esp. Ribbon cable, so that along the transport path 11 and the grinding path to be adjusted / transported grinding unit 9 is also supplied in any position in an advantageous manner with electrical energy.

In addition, an LED 20 is provided which indicates, for example, a grinding phase (red) and a resting phase or a ground state (after the grinding phase) of the blade 2 (green).

Furthermore, a cleaning brush 22 or the like for cleaning the blade 2 of grinding dust etc. and / or a holding prism 23 for the back of the knife can be provided.

According to the invention, instead of a manual action, i. To grind the knife blade of a high-quality kitchen knife 2 by hand, be carried out by an automatic, mechanical process. Here, the used kitchen knife 2 is inserted into a knife block 3 with automatically running grinding unit 9. One or more sensors 6 detect the inserted knife 2 and the grinding automatism is e.g. executed once. This eliminates a tedious re-sharpening different length stored kitchen knife. 2

Advantageously, an automatic knife sharpening block 3 or a grinding unit 9 is provided per knife 2. Preferably, a base knife block 3 or so-called "master" are provided with a power supply 16, to which all other knife blocks 3 or so-called "slaves" are electrically adapted / coupled.

If a knife 2 is removed from any knife block 3 and put back again, an at least one grinding process is triggered or carried out at this sharpening station or the knife magazine 4 in an advantageous manner.

Advantages of the automated grinding are among others: If after use and knife storage always automatically reground, so you have for the application always the same sharp, each newly ground knife 2. Previously, however, was that in late grinding may be the knife blade often too blunt; the more talent, craftsmanship and time had to be spent to sharpen such a knife blade. A special feeling, when, how often and how intensively the respective knife 2 must be ground, does not have to be developed manually according to the invention, because each knife 2 is advantageously after insertion into the knife block 3 or knife magazine 4 in one Reground once or several times back and forth along the grinding path 11.

Frequently used knives 2 are thus always usable sharp according to the invention; as well as the rarely used knives. Positive side effect here is the order in the kitchen or in the entire or modular knife storage unit 1 and always sharp knife. 2

• Das Messer 2 wird zur Ablage im Messerblock 1, 3 gesteckt. Der interne Sensor 6 (z.B. Reflexionslichtschranke) im Messerblockende erkennt das eingesteckte Messer 2.

Eine motorisch betriebene, vorzugsweise in sich gefederte Schleifscheibe 10 bewegt sich entlang der
Messerschneidenkontur bzw. dem Transportweg 11 auf und ab, sobald der Sensor 6 die eingesteckte Messerklinge des Messers 2 erkannt hat.
Um die Messerklingenkontur exakt abzufahren und einen möglichst gleichmäßigen Schliff zu gewährleisten, bewegt sich eine rotierende- und in sich gefederte Schleifscheibe 10 in einer ebenfalls federnd gelagerten Schwinge bzw. der Zahnstange 14 entlang der Klinge.
Die federnd gelagerte Schwinge mit dem Schleifmotor 13, sitzt gemeinsam auf einem vorteilhaften Antriebsmotorträger.
Der Antriebsmotor 12 mit Zahnritzel 15 und Antriebsmotorträger transportiert entlang einer Zahnstange 14 die Schleifeinheit 9.
Die Zahnstangenkontur ähnelt der Kontur der Messerklinge, damit die gefederte Schleifscheibe 10 möglichst immer mit gleicher Federkraft an der Klinge entlangschleift, was zu einem gleichmäßigen Schliff führt. Die Zahnstange 14 hat z.B. eine für die Schleifbahnkurve bestimmende Form.An advantageous mode of operation of the automatically sharpening knife block is, for example:

• The knife 2 is inserted for storage in the knife block 1, 3. The internal sensor 6 (eg reflection light barrier) in the knife block end recognizes the inserted knife 2.

A motor-driven, preferably spring-loaded grinding wheel 10 moves along the
Knife edge contour or the transport path 11 up and down as soon as the sensor 6 has detected the inserted knife blade of the knife 2.
In order to accurately descend the knife blade contour and to ensure a uniform as possible grind, moves a rotating and in itself spring-loaded grinding wheel 10 in a likewise spring-mounted rocker or the rack 14 along the blade.
The spring-mounted rocker with the grinding motor 13, sits together on an advantageous drive motor carrier.
The drive motor 12 with pinion 15 and drive motor carrier transported along a rack 14, the grinding unit. 9
The rack contour resembles the contour of the knife blade, so that the sprung grinding wheel 10 as possible always along the blade with the same spring force on the blade, resulting in a uniform grinding. For example, the rack 14 has a shape that determines the slip path curve.

The grinding process is relatively quiet, since in the knife block 1, 3 of the occurring "grinding noise" is swallowed and barely produced by the typical solid construction of the knife block 3 structure-borne sound.

1. a) Messerblock 3
   • Basismesserblock 3 mit Stromversorgungseinheit 16,
   • weitere adaptierbare-, zusammensteckbare Messerblöcke 3,
   • Messererkennungssensor 6,
   • Rücklaufsensor 7,
   • Stop-Sensor 8,
   • Bürste 22, um Schleifstaub abzufangen,
   • Anlageprismen 23 für Messerrücken.
2. b) Schleifeinheit 9
   • Schwinge
   • Antriebsmotor 13 der Schleifscheibe 10,
   • Feder,
   • Schleifscheibe 10,
   • Antriebsmotorträger,
   • Antriebsmotor 12,
   • Zahnstange 14.

Essential components of a preferred variant of the invention are, for example:

1. a) Knife block 3
   • Base knife block 3 with power supply unit 16,
   • further adaptable, pluggable knife blocks 3,
   • Knife detection sensor 6,
   • Return flow sensor 7,
   • Stop sensor 8,
   • Brush 22 to absorb sanding dust
   • Investment prisms 23 for knife backs.
2. b) grinding unit 9
   • wing
   • Drive motor 13 of the grinding wheel 10,
   • Feather,
   • Grinding wheel 10,
   • Drive motor carrier,
   • Drive motor 12,
   • Rack 14.

LIST OF REFERENCE NUMBERS

1

Storage unit

2

knife

3

knife block

4

Messer Magazin

5

diameter opening

6

sensor

7

sensor

8th

sensor

9

grinding unit

10

grinding wheel

11

grinding track

12

engine

13

engine

14

rack

15

gear

16

power adapter

17

plug

18

cap

19

Rifle

20

LED

21

electric wire

22

brush

Claims (10)

A knife storage unit (1) with a knife magazine (4) for storing a knife (2), wherein a magazine opening (5) for insertion of the knife (2) in the knife magazine (4) is provided, wherein a at least one grinding element (10) having grinding device (9) is provided for grinding a knife edge of the knife (2), characterized in that at least one knife sensor (6) for detecting the at least partially through the magazine opening (5) in the knife magazine (4) introduced blade (2) is provided. Knife storage unit according to claim 1, characterized in that the grinding device (9) comprises at least one drive unit (12, 13) for adjusting the grinding element (10). Knife storage unit according to one of the preceding claims, characterized in that the grinding element (10) is designed as a rotatable about an axis of rotation and by the drive unit (13) drivable grinding element (10). Knife storage unit according to one of the preceding claims, characterized in that the grinding device (9) at least one transport unit (12, 14, 15) for adjusting the grinding element (10) along a transport path (11). Knife storage unit according to one of the preceding claims, characterized in that the transport path (11) substantially corresponds to a contour of a curved knife edge. Knife storage unit according to one of the preceding claims, characterized in that the transport unit (12, 14, 15) comprises at least one transport drive (12). Knife storage unit according to one of the preceding claims, characterized in that the transport unit (12, 14, 15) is at least partially pivotable about a pivot axis. Knife storage unit according to one of the preceding claims, characterized in that the transport unit (12, 14, 15) comprises at least one spring element for generating a contact force of the grinding element (10). Knife storage unit according to one of the preceding claims, characterized in that the knife storage unit (1) as a first knife storage module (1, 3) for coupling and / or connecting with a second knife storage module (1, 3) is formed. Knife storage unit according to one of the preceding claims, characterized in that at least one plug-in device (17, 19) for energy transfer between the first and the second knife storage module (1, 3) is provided.

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