DE9004107U1 - Core drill for pome fruits with small seeds, such as apples or pears - Google Patents

Description

· I

Description Applicant: Heinz Köhler, Dipl.-Ing.

Schsralbenstrasse 26 4133 leukirchen-Yluyn

title

Core drill for pome fruit bit small cores, such as apples or pears

genus

The invention relates to a casing-type ice drill for pomaceous fruit with small cores, such as apples and pears, in the style of a conventional apple corer, consisting of a tubular shaft with ejection slot, with blades, with front blade with cleaning slot and rear

State of the art technology

^*techniques of the traditional type have long been known and used in various fields and materials. They make it possible to remove the core from apples or pears, but the fruit must be pierced in the process. This procedure is entirely justified for various purposes.

Criticism of the state of the art

Disadvantages of the apple corers used to date are that it is inconvenient to interrupt the coring process if only the core is to be removed and the apple is not to be completely pierced, that the depth of penetration of the apple corer cannot be measured, that a relatively high level of force is required for hard apples, that the fruit can be blown apart when pierced, that removing the ejected core from conventional apple corers is difficult or not possible without special devices and that with hard apples there is a risk of injury due to the apple slipping or the apple corer tipping over.

Task

The invention is based on the object of eliminating the above-mentioned disadvantages of conventional apple corers

• · ff

If t ·

* ♦ · 4

- Co -

and to create a core drill that is easy to manufacture, that consists of just one device without additional parts, that is easy to handle and does not require any special effort, that can only be used to drill out and remove the core without piercing the fruit, but with which a complete drilling is also possible - with which the penetration depth of the core desired by the user can be set so that the drilling material can be easily removed without special tools, that is easy to clean, ""■ all edges and corners are deburred and rounded and whose saw teeth, the cutting edge and the saw blades are only bevelled and not ground to a razor-sharp edge in order to largely exclude the risk of injury when handling the core drill, but which can be used not only for drilling out the core, such as in apples or pears, but also in other types of fruit with small cores.

Solution

This object is achieved according to the invention in that the core cutter in the form of a conventional apple corer has a measuring scale on the outside of the semi-tubular shaft that remains opposite the ejection slot and the front circular edge of the drill head consists of a cutting edge with saw teeth and there are two opposing cutting blades of approximately four millimeters width inside the drill head and the drill head is provided with a cleaning slot at full height on the side of the ejection slot in the axial direction and the tubular shaft is closed off with a rear handle. A preferred embodiment is characterized in claims 2 to 8.

Description of the embodiment The core housing drill according to the invention is described in more detail below by means of drawings which represent an embodiment example. The drawings show in:

Fig. 1 the core casing drill in side view,

- Kn -

Pip;. ? the core drill with a view of the measuring scale,

Fig. 3 the core housing drill with, view of the ejection and cleaning slot,

Fig. 4 the core casing drill in

a section along the line I - I in Fig. 2,

Fig. 5 the development of the lateral surface

and the son eid in the opened state of the core casing auger without the rear handle,

Fig. 6 the section through the drill head according to the line &Idigr; -I in Fig. 2,

Fig. 7 the section through the drill head

according to the line II - II in Fig. 8,

Fig. 8 the top view of the front side of the drill head according to the line III - III in Fig. 3.

Reproduction of the characterising parts of the subclaims

The core drill has the shape of a conventional apple corer 1 shown in Fig. 1 as a rare sight, consisting of a tubular or partially semi-tubular shaft with a side ejection slot 2, with the drill head 4 and the cutting edge with saw teeth 6, with the cutting blades 7 and the handle 5.

The saw teeth of the cutting edge 6 -Fig. 5-7- are perpendicular to the shank surface or axially to the tubular shaft in the direction of rotation and are slightly rounded at the front tip and bevelled on the inside.

The two opposing cutting blades 7 -Fig. 1,4 and 5-8- located inside the drill head 4 are made of

- Kö -

The front edge of the sawtooth cutting edge 6 is arranged offset inwards by one millimetre, their front daughter edge is at a right angle - Fig. 7 - to the axial direction of the tubular shaft, they run inwards up to their rear edge - Fig. 6+7 - and are sharpened inwards on the front cutting edge 7.

The cleaning slot 8 of the drill head 4 -Fig. 3+8- is arranged in a width of approximately four millimeters in the axial direction through the drill head below the ejection slot.

The rear handle 5 made of hard plastic -Fig. 1-4- is placed on the tubular shaft of the core housing drill and is firmly connected to it.

The core housing drill 1 to 8 -Fig. 1-8- can be made of stainless steel or hard plastic or of a combination of steel and hard plastic.

Achievable benefits

The core housing drill according to the invention can be manufactured easily and inexpensively from stainless steel sheet, hard plastic or from a combination of both of the aforementioned materials.

It can be handled without any significant effort, as the saw teeth cut the hole through the rotating movement. As it rotates, the core drill pulls itself into the pome fruit, e.g. apples or pears, using the two cutting blades that run diagonally inwards. The outer diameter of the fruit can be measured using the measuring scale, the desired drilling depth can be determined in advance by the user and can be read off the measuring scale at any time during the drilling process.

The two cutting blades separate the core from the fruit to be drilled out with a clean cut. The drilled core is located inside the core drill above the cutting blades of the drill head, is held in place by the drill head and can be pulled out of the respective fruit effortlessly and without leaving any residue. If necessary, the fruit can be drilled through completely just as easily. It is advantageous that the core drill only consists of one

- Kö -

The device is easy to clean under running water without the need for special tools or additional equipment. The core casing residues in the drill head can be easily removed by the cleaning tool using a spoon handle, the back of a knife or a fork in the direction of the ejection slot. It is also important that the core casing drill excludes accidents or hand injuries due to its design features and can be operated equally by both right- and left-handed people.

The core corer according to the invention was developed primarily for preparing stuffed baked apples. Because the core is drilled out without completely piercing the apple, the filling of the baked apples does not run out downwards during the cooking process and remains inside, which contributes significantly to increasing the enjoyment.

However, the core drill is versatile and suitable for drilling out all fruits that do not contain large seeds, such as stone fruit.

Claims (7)

- Kö - Protection claims: I. Core cutter for pome fruit with small cores, such as apples or pears, in the form of a conventional apple corer (1), consisting of a tubular shaft with a half-pipe-sized ejector (2) on the side , with a front drill head (4) and rear handle (5), characterized in that
that the front circular edge of the drill head (4) consists of a cutting edge with saw teeth (6), that inside the drill head (4) behind the front edge of the SäsesähnS (S) ZV? ^e i g-»en<llierB+.eheni· Sf.hnei &Lgr; le "H no-en (T) condition, that the drill head (4) is provided with a cleaning slot (8) at full height on the side of the ejection slot (2) in the axial direction and that the tubular shaft is provided with a rear handle (5) is completed. 2. Core casing drill according to claim 1, characterized in that the saw teeth of the cutting edge (6) of the drill head (4) - in the direction of rotation clockwise - are perpendicular to the ozone surface bz#. axially to the tubular shaft. 3. Core casing drill according to claims 1 and 2, characterized in that that the saw teeth of the cutting edge (6) are bevelled on the inside at their front tip. 4. Core casing drill according to claims 1 to 3, characterized in that that the front cutting edges of the two opposing cutting blades (7) - clockwise in the direction of rotation - are at right angles to the axial direction and offset inwards by one millimetre behind the front edge of the saw teeth of the cutting edge (6) and that the front cutting edges of the cutting blades (7) are sharpened inwards and that the cutting blades (7) run at an inward angle from their front cutting edge to the rear edge. - Co - 5. Core casing drill according to claims 1 to 4, characterized in that that the drill head (4) is provided with a cleaning slot (8) approximately four millimetres wide in the axial direction at its full height on the side of the ejection slot (2). 6. Core casing drill according to claims 1 to 5, characterized in that that a rear handle (5) made of hard plastic is placed on the tubular shaft. 7. Core casing drill according to claims 1 to 6, characterized in that that the core corer in the form of a conventional apple corer (1) is made of stainless steel or hard plastic or a combination of steel and hard plastic.