DE202011106042U1 - Device for crushing - Google Patents

Abstract

Device for comminuting vegetable products or smaller crystalline substances in the manner of a mortar or mortar with a pestle (1) and a cup-like container (2), the radius of curvature of the working surface (5) of the pestle (1) being smaller than the radius of curvature of the Inner surface (9) of the container (2) and the working surface (5) of the pestle (1) has bumps, characterized in that the bumps are designed as flat concave depressions (6) which have a curved, sharp edge (7) with the work surface (5) of the pestle (1).

Description

The invention relates to a mortar or a mortar for comminuting in particular vegetable products such as spices and crystalline substances of small size, such as salt crystals and sugar crystals.

Mortars and friction bowls are known as cup-shaped containers made of porcelain, marble, granite and metals, in which by means of a pestle (pestle) the respective product is crushed and crushed. The inner surfaces of the cup-shaped container of the mortar or the mortar has a larger radius of curvature than the curvature of the working surface of the pestle to ensure a proper use.

The pestle can be operated by hand in the fixed container. A mechanical movement of pestle and / or container is known and is described, inter alia, in the DE 34 30 047 A1 - mortar mill of the company F. Kurt Retsch GmbH & Co. KG and DE 1782168 - Laboratory small mill of the company Fritsch oHG, Laborgerätebau.

In contrast to mortars, whose inner vessel wall is smooth, as is usually the work surface of the pestles, have friction shells, which are mostly made of porcelain, a rough inner surface on and the pestle is roughened on the work surface.

This training of the interacting tools is also the effect on the reaching between this pair of tools products or substances.

In the case of the mortar, the crushing or crushing of the products or substances predominates, while in the case of the mortars, the principle of grating dominates.

The prior art also proposes special container and pestle designs to achieve additional effects. That's how it looks DE 138 366 B the pestle, whose curvature is identical to the mortar, before that the surface of the pestle has button-shaped elevations, which are spaced differently. In addition to a grinding so a mixing of the introduced products can be achieved.

For grating and pulverizing saffron threads is in the DE 202 10 582 U1 proposed a metal stamp, which has a flat and riffelige surface.

At the grinding post to DE 10 2007 007 075 A1 the work surface is designed as a grinding disc with cavities, which should consist of intersecting or curved grooves. The grinding disc interacts with a grinding sieve.

These constructions have disadvantages. In particular button or nipple protruding elevations as well as grooves and slits tend to collect in them ground and clogged them. Thus, their intended effect is lost and cleaning becomes a complex matter.

The object of the invention is to combine the benefits of a mortar with those of a mortar and to use in addition to the crushing and grinding the function of cutting with.

This object is achieved with the features of claim 1, advantageous embodiments are the subject of the dependent claims.

According to the invention, in a device for comminuting vegetable products or smaller crystalline substances in the manner of a mortar or a mortar with a pestle and a cup-like container, the radius of curvature of the working surface of the pestle is smaller than the radius of curvature of the inner surface of the container and the working surface of the pestle Bumps, suggested that the bumps are formed as a shallow concave depressions, which form a curved sharp edge with the working surface of the pestle.

The curved sharp edge is preferably formed circular or elliptical or oval-shaped, wherein the rim diameter of circular recesses between 7 and 4 mm, preferably 5 mm.

The angle α between the tangent of the concave depression and the tangent of the working surface of the pestle should be between 110-125 °, preferably between 115-120 °.

In this way it is achieved that in addition to the crushing and crushing of the products and substances, a cutting action of the pestle on the products and substances is achieved.

Due to the shallow formation of the depressions, comparable to the dimples of a golf ball, also a setting of the processed products and substances is avoided. This is another advantage.

It is also advantageous if the distribution of the depressions is made uniformly on the working surface of the pestle.

This distribution can affect the entire work surface or the arrangement of the wells is limited to only a portion of the work surface. Part of this section may be an area around the center of the work surface or an annular portion of the work surface.

The inner surface of the cup-like container is smooth as in most mortars. The cup-like container is like the working surface of the pestle of a ceramic material. It has proven useful if the cup-like container is inserted into a plastic or wooden bowl.

In the drawings, an embodiment is shown in different views. Show it:

1 perspective view,

2 Top view and

3 Side view.

The in the 1 - 3 illustrated device for crushing of vegetable products or smaller crystalline substances in the manner of a mortar or a mortar consists of a pestle 1 and a cup-shaped container 2 in a plastic or wooden bowl 8th is used. The inner surface 9 the cup-like container 2 is smooth.

The pestles 1 is composed of a screen-like shaped ceramic body 3 with the work surface 5 that is attached to a pestle handle 4 attached or on a smaller pestle head 10 is attached. Also the cup-like container 2 consists of a ceramic material.

This ensures that the ceramic material is used only where it has its strengths, on the head of the pestle 1 with the work surface 5 and in the core of the shell 8th , at the container 2 ,

At the same time the container 2 through the plastic or wooden bowl 8th protected, because ceramics can z. B. break at sudden loads when falling.

The handle of the pestle 1 is ergonomically adjusted so that simultaneous turning and pushing is easy.

They are also located on the outer surface of the shell 8th as well as the handle of the pestle 1 no edges, which makes cleaning easier.

The curvature radius of the work surface 5 of the pestle 1 is smaller than the radius of curvature of the inner surface 9 of the container 2 , The work surface 5 of the pestle 1 has bumps in the form of shallow concave depressions 6 with a sharp circular edge 7 on. The rim diameter is 5 mm. The angle α between the tangent of the concave depression 6 and the tangent of the work surface 5 of the pestle 1 is 118 °, an angle which is preferably used in the cutting geometry of drills.

The depth of the recesses is in the range of 0.5-3 mm.

The distribution of the wells 6 is even on the work surface 5 of the pestle 1 been made, the wells 6 about 90% of the work surface 5 of the pestle 1 taking.

With the presented device a shapely, functional and easy to clean device is proposed especially for the household and the laboratory.

LIST OF REFERENCE NUMBERS

1

pestle

2

cup-shaped container

3

umbrella-like body of pestle

4

Pistillgriff

5

Working surface of the pestle

6

concave depressions

7

Edge of the depressions

8th

Plastic or wooden bowl

9

Inner surface of the container

10

small pestle head

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 3430047 A1 [0003]
• DE 1782168 [0003]
• DE 138366 B [0007]
• DE 20210582 U1 [0008]
• DE 102007007075 A1 [0009]

Claims (11)

Apparatus for comminuting vegetable products or smaller crystalline substances in the manner of a mortar or a mortar with a pestle ( 1 ) and a cup-like container ( 2 ), where the radius of curvature of the work surface ( 5 ) of the pestle ( 1 ) is smaller than the radius of curvature of the inner surface ( 9 ) of the container ( 2 ) and the workspace ( 5 ) of the pestle ( 1 ) Has unevenness, characterized in that the irregularities are in the form of shallow concave depressions ( 6 ) are formed, which have a curved sharp edge ( 7 ) with the workspace ( 5 ) of the pestle ( 1 ) form. Apparatus according to claim 1, characterized in that the curved sharp edge ( 7 ) is formed circular or elliptical or oval-shaped. Apparatus according to claim 1 or 2, characterized in that the edge diameter in circular depressions ( 6 ) is between 7 and 4 mm, preferably 5 mm. Device according to one of claims 1 to 3, characterized in that the angle α between the tangent of the concave depression ( 6 ) and the tangent of the work surface ( 5 ) of the pestle ( 1 ) is between 110-125 °, preferably between 115-120 °. Device according to one of claims 1 to 4, characterized in that the distribution of the depressions ( 6 ) evenly on the work surface ( 5 ) of the pestle ( 1 ) is made. Device according to one of claims 1 to 5, characterized in that the distribution of the depressions ( 6 ) on the entire working area ( 5 ) or the arrangement of the depressions ( 6 ) is only on a section of the work surface ( 5 ). Device according to Claim 6, characterized in that the section is a region around the center of the working surface ( 5 ) and / or an annular portion of the work surface ( 5 ). Device according to one of claims 1 to 7, characterized in that the depressions ( 6 ) up to 90% of the working area ( 5 ) of the pestle ( 1 ). Device according to one of claims 1 to 8, characterized in that the pestle ( 1 ) of a screen-like shaped ceramic body ( 3 ) with the workspace ( 5 ) attached to a pestle handle ( 4 ) or on a smaller pestle head ( 10 ) is attached. Device according to one of claims 1 to 9, characterized in that the cup-like container ( 2 ) consists of a ceramic material, which in a plastic or wooden shell ( 8th ) is used. Device according to one of claims 1 to 10, characterized in that the inner surface ( 9 ) of the cup-like container ( 2 ) is smooth.

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