DE202015007292U1 - Cutting tool - Google Patents

Cutting tool

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Publication number
DE202015007292U1
DE202015007292U1 DE202015007292.5U DE202015007292U DE202015007292U1 DE 202015007292 U1 DE202015007292 U1 DE 202015007292U1 DE 202015007292 U DE202015007292 U DE 202015007292U DE 202015007292 U1 DE202015007292 U1 DE 202015007292U1
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DE
Germany
Prior art keywords
cutting tool
material
erl
characterized
cutting
Prior art date
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Active
Application number
DE202015007292.5U
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German (de)
Original Assignee
Daniel Choe
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Publication date
Application filed by Daniel Choe filed Critical Daniel Choe
Priority to DE202015007292.5U priority Critical patent/DE202015007292U1/en
Publication of DE202015007292U1 publication Critical patent/DE202015007292U1/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26BHAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B9/00Blades for hand knives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26BHAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B3/00Hand knives with fixed blades

Abstract

A cutting tool for separating material with a blade (1, 2) having a single cutting blade (2), the single blade (1, 2) being formed in two parts and a first part being a metallic support material (1) and fixed thereto by a rigid connection (12) the cutting blade (2) is arranged and the cutting blade (2) made of a harder steel material as the carrier material (1) and wherein the cutting tool is formed as a knife with a crop (4) and a Erl (5), characterized in that the support material (1) consists of a martensitic tempering steel and that the cutting blade (2) consists of a martensitic chromium steel, and that the tang (5) for receiving at least one weight (11) has at least one first passage opening (9) and a weight (11) can be positioned in a passage opening (9) in order to align the cutting tool.

Description

  • The invention relates to a cutting tool for separating material according to the preamble of the independent claim.
  • Cutting tools are well known in the art. For example, the manual or motorized handle of any kind and application, scissors, axes or axes etc. DE 89 13 822 U1 and DE 91 08 009 U1 reveal blades consisting of leaf, bolster and Erl, in which the root and leaf are welded to the opposite flat surfaces of the crop. According to DE 89 13 822 U1 For example, the knife has a sintered steel goiter, with the material of Erl and goiter having about the same hardness, which is less than that of the sheet material. According to DE 91 08 009 U1 the crop is only welded to a central region of the broad side end edges of the Erls and a handle body has at the, the weld beads facing surfaces on grooves.
  • DE 10 2008 013 394 A1 discloses a composite knife blade having a first alloy cutting piece and a second alloy backing piece, wherein the cutting piece and the back piece are connected by soldering and the cutting piece has the greater hardness.
  • DE 10 2006 004 588 A1 describes a household knife with a blade body and a cutting edge forming hard material cutting element.
  • JP H08 155 153 A discloses a chef's knife with a cutting edge of a cemented carbide.
  • DE 854 312 B discloses a knife made of a pressed material with a pressed in the front end, pressed cutting blade. For this purpose, the cutting blade has openings through which the pressed material is pressed.
  • The invention is based on the object to provide a high-quality cutting tool of the type mentioned, which is cheaper and more resource-efficient and whose weight is better balanced.
  • The object is solved by the characterizing features of the independent claim. Further developments emerge from the dependent claims.
  • A first aspect of the invention is based on the fact that the cutting tool for cutting material is a high-quality cutting tool. The cutting tool essentially comprises a special, single sheet, which is formed from two parts. This blade of the cutting tool comprises, as the first part, a metallic carrier material and a one-cutting cutting blade made of a knife steel, which is fixedly connected thereto, as a second part. The carrier material can be formed from a relatively inexpensive metal, in particular steel. The lower cost metal has a hardness that is less than the hardness of the cutting blade. The cutting blade is formed of a high quality knife steel, which preferably has a hardness of at least 57 HRC. In contrast to high-quality cutting tools with a sheet consistently formed from a uniform material, the sheet according to the invention made in two parts is noticeably less expensive and protects the existing material resources.
  • As a second aspect may be mentioned that in such a cutting tool, the firm connection of carrier material and cutting blade is cohesively formed, for example, as a welded joint or form-fitting, for example, as a dovetail connection is formed. In a further development, the connection can also be formed combined materially and positively connected. After joining the carrier material and the cutting blade, at least one surface treatment, for example by grinding, polishing, etc., can take place.
  • A third aspect results from the fact that the two-part sheet has a high edge retention (high durability), a very good cutting ability and also very good sharpenability.
  • As a fourth aspect, it can be stated that, depending on the type of cutting tool, for example in the case of a knife, the crop and the tang are likewise formed from the metallic carrier material. Here, the metallic carrier material of the sheet with the crop and the Erl can be integrally formed from a continuous material. Alternatively, the metallic carrier material of the sheet with the crop and the Erl can be formed by a cohesive connection, as for example DE 89 13 822 U1 disclosed. On the Erl a handle can be fixed, alternatively, the Erl itself can form the handle.
  • A fifth aspect is based on the fact that the tang of the cutting tool has at least one passage opening which intersects its longitudinal axis in a relative position or intersect this longitudinal axis in the presence of a plurality of passage openings. In each of the through hole, a weight, such as steel weights, can be used to balance the cutting tool. Depending on the balance, individual passage openings can not be provided with a weight be. The aim is that the cutting tool is balanced in terms of total weight.
  • If necessary, further through openings may be present, by means of which in known manner, for example using hollow rivets, the handle of the cutting tool is connected to the Erl.
  • The invention will be explained in more detail using an exemplary embodiment. Here are shown schematically:
  • 1 a kitchen knife with a metallic carrier material consisting of an upper and a lower part,
  • 2 the kitchen knife gem. 1 with the upper part to be separated from the upper part of the carrier material,
  • 3 the kitchen knife gem. 1 with top,
  • 4 the cutting blade as a single part,
  • 5 the kitchen knife gem. 3 with zusammenzusetzender cutting blade gem. 4 .
  • 6 the composite structure of metallic carrier material (upper part) and cutting blade in longitudinal view,
  • 7 the composite structure of metallic carrier material (upper part) and cutting blade in cross-section,
  • 8th the connection of carrier material (upper part) and cutting blade to the kitchen knife,
  • 9 a handle of the kitchen knife in longitudinal view,
  • 10 the handle gem. 9 in cross section,
  • 11 the Erl of the kitchen knife with through holes,
  • 12 individual weights, which passable in the through holes of the Erls gem. 11 can be used,
  • 13 the Erl gem. 11 with an inserted weight,
  • 14 the handle connected with the Erl.
  • An inventive cutting tool is used for separating material. For example, the materials may be pliable materials as well as wood or meat, fish, etc.
  • The cutting tool comprises a single-edged cutting blade 2 exhibiting sheet 1 . 2 , The single sheet 1 . 2 is formed in two parts and a first part is a metallic carrier material 1 and it is by means of a firm connection 12 the cutting blade 2 arranged as a second part. The solid connection 12 of carrier material 1 and cutting blade 2 to a sheet 1 . 2 can be formed cohesively. Alternatively, the solid compound 12 of carrier material 1 and cutting blade 2 to the sheet 1 . 2 be formed positively. Furthermore, the solid compound 12 be formed by combination cohesively and positively.
  • For the positive connection are preferably suitable connection types such as dovetail guides, meandering compounds or linear, including curved line-shaped compounds and wavy shaped connections. These are in the area of the connection 12 abutting sides of substrate 1 cutting blade 2 shaped accordingly.
  • For the material connection in the area of the connection 12 compound types such as, for example, welding methods, melting methods, etc., are preferred, alternatively casting or pressing methods.
  • When manufacturing the carrier material 1 with upper and lower part 1 . 1' generated and then the lower part 1' from the top of the substrate 1 at a separation point 3 separated. The severed lower part 1' is disposed of or used. After generating the cutting blade 2 this will take the place of the lower part 1' suitable for the upper part of the carrier material 1 used and by means of the connection 12 firmly connected. The connection 12 takes place essentially at the original separation point 3 ,
  • After the production of the sheet 1 . 2 including the connection 12 can the connection 12 and / or the sheet 1 . 2 including the connection 12 to get a surface finish. For example, a grinding process and / or a polishing process may be performed. Alternatively, laser treatments are possible.
  • The carrier material 1 of the leaf 1 . 2 is preferably made of a relatively inexpensive metal, especially steel material, and the cutting blade 2 of the leaf 1 . 2 is made of a knife steel. The carrier material 1 of the leaf 1 . 2 preferably has a lower hardness than the cutting blade 2 of the leaf 1 . 2 on, ie the cutting blade 2 is made of a harder steel material. In a special training, the carrier material 1 made of a chromium-alloyed tempered steel and the cutting blade 2 consists of a martensitic chrome steel. Preferably, the carrier material 1 from a steel after the AISI standard 4208 (Material No. 1.4021) or 4408 (material number 1.4112) and the cutting blade 2 consists of a steel of the material no. 1.4528 or the material no. 1.4916.
  • The latter steels for the cutting blade 2 are known, for example, from the company Böhler, Austria, under the product name N690 (material No. 1.4528) or from the company Buderus Edelstahl, Germany, under the product name Nitro-B (material No. 1.4916).
  • In training as a knife, such as kitchen knives, the cutting tool with a bolster 4 and an Erl 5 educated. On the Erl 5 can handle from above 6 with a match to the Erl 5 extending, groove-shaped slot 7 to be ordered. The slot 7 is by means of fixatives 8th with the Erl 5 connected. The fixation 8th can form fit by bolts, hollow rivets, etc. or cohesively by means of adhesive bond. In a positive connection, the Erl 5 second through holes 10 on.
  • In a special education, the Erl 5 for receiving at least one weight 11 at least a first passage opening 9 on. There is one weight each 11 in a passage opening 9 positionable to balance the cutting tool. The goal is to create a balance. Preference is given to several first passage openings 9 arranged in relative position such that they are the longitudinal axis 14 of the Erl 5 to cut.
  • The weights 11 can optionally in the first passages 9 be positioned. Depending on the desired counterbalance, individual ones of the first through holes can be used 9 free of one weight each 11 stay. The weights are preferred 11 formed of a relatively heavy metal, for example of a steel material.
  • On the Erl 5 is the handle 6 with the groove-shaped slot 7 arranged and can by means of fixative 8th with the Erl 5 be connected. The handle encloses 6 on the Erl 5 in the first passages 9 positioned weights 11 , In the assembly are the weights 11 through the handle 11 covered.
  • The handle 6 is on the Erl 5 arranged so that this the weights 11 in the first passages 9 encloses and thus the weights are not visible. In the positive connection of handle 6 and Erl 5 has the handle 6 third passages 13 on, the passable to the second through holes 10 are arranged in alignment, so that, for example, the hollow rivets (fixing means 8th ) from the second and third ports 10 . 13 can be included.
  • LIST OF REFERENCE NUMBERS
  • 1
    metallic carrier material (upper part 1 , Lower part 1' )
    2
    cutting blade
    3
    separation point
    4
    goiter
    5
    Erl
    6
    Handle
    7
    Slot (in the handle)
    8th
    fixative
    9
    first passage opening
    10
    second passage opening
    11
    Weight
    12
    stable connection
    13
    third passage opening
    14
    longitudinal axis
  • 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 8913822 U1 [0002, 0002, 0012]
    • DE 9108009 U1 [0002, 0002]
    • DE 102008013394 A1 [0003]
    • DE 102006004588 A1 [0004]
    • JP 155153 A [0005]
    • DE 854312 B [0006]
  • Cited non-patent literature
    • AISI Standard 4208 (Material No. 1.4021) [0036]
    • 4408 (Material No. 1.4112) [0036]

Claims (10)

  1. Cutting tool for separating material with a one-cutting cutting blade ( 2 ) ( 1 . 2 ), whereby the single sheet ( 1 . 2 ) is formed in two parts and a first part of a metallic carrier material ( 1 ) and by means of a fixed connection ( 12 ) the cutting blade ( 2 ) is arranged and the cutting blade ( 2 ) of a harder steel material than the carrier material ( 1 ) and wherein the cutting tool as a knife with a crop ( 4 ) and a Erl ( 5 ), characterized in that the carrier material ( 1 ) consists of a martensitic tempering steel and that the cutting blade ( 2 ) consists of a martensitic chromium steel, and that the Erl ( 5 ) for receiving at least one weight ( 11 ) at least one first passage opening ( 9 ) and that each one weight ( 11 ) in a passage opening ( 9 ) is positionable to balance the cutting tool.
  2. Cutting tool according to claim 1, characterized in that the carrier material ( 1 ) consists of a steel according to AISI standard 4208 (material No. 1.4021) or 4408 (material No. 1.4112) and that the cutting blade ( 2 ) made of a steel of the material no. 1.4528 or the material no. 1.4916 exists.
  3. Cutting tool according to claim 1, characterized in that a plurality of first passage openings ( 9 ) in relative position the longitudinal axis ( 14 ) of the Erl ( 5 ) to cut.
  4. Cutting tool according to claim 1, characterized in that the weights ( 11 ) optionally in the first passage openings ( 9 ) are positionable.
  5. Cutting tool according to claim 1, characterized in that on the Erl ( 5 ) a handle ( 6 ) with a groove-shaped slot ( 7 ) is arranged, which by means of fixing ( 8th ) with the Erl ( 5 ) connected is.
  6. Cutting tool according to claim 5, characterized in that the handle ( 6 ) on the Erl ( 5 ) the weights ( 11 ) encloses.
  7. Cutting tool according to claim 1, characterized in that the fixed connection ( 12 ) is formed cohesively.
  8. Cutting tool according to claim 1, characterized in that the fixed connection ( 12 ) is formed positively.
  9. Cutting tool according to claim 7 and 8, characterized in that the fixed connection ( 12 ) is formed by combination cohesively and positively.
  10. Cutting tool according to claim 1, characterized in that the weight ( 11 ) is formed of a relatively heavy metal.
DE202015007292.5U 2015-10-20 2015-10-20 Cutting tool Active DE202015007292U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE202015007292.5U DE202015007292U1 (en) 2015-10-20 2015-10-20 Cutting tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202015007292.5U DE202015007292U1 (en) 2015-10-20 2015-10-20 Cutting tool

Publications (1)

Publication Number Publication Date
DE202015007292U1 true DE202015007292U1 (en) 2015-11-20

Family

ID=54840157

Family Applications (1)

Application Number Title Priority Date Filing Date
DE202015007292.5U Active DE202015007292U1 (en) 2015-10-20 2015-10-20 Cutting tool

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DE (1) DE202015007292U1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE854312C (en) 1943-05-04 1952-11-04 Erwin Krusius knife
DE8913822U1 (en) 1989-11-23 1990-08-09 J.A. Henckels Zwillingswerk Ag, 5650 Solingen, De
DE9108009U1 (en) 1991-06-28 1992-10-29 J.A. Henckels Zwillingswerk Ag, 5650 Solingen, De
DE102006004588A1 (en) 2006-02-01 2007-08-02 Wmf Württembergische Metallwarenfabrik Ag Knife used in homes, restaurants and hotels comprises hard material cutting element arranged on blade-like base body and forming cutting edge
DE102008013394A1 (en) 2007-04-12 2008-10-16 KAI U.S.A., Ltd. dba Kershaw Knives, Tualatin Composite blade

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE854312C (en) 1943-05-04 1952-11-04 Erwin Krusius knife
DE8913822U1 (en) 1989-11-23 1990-08-09 J.A. Henckels Zwillingswerk Ag, 5650 Solingen, De
DE9108009U1 (en) 1991-06-28 1992-10-29 J.A. Henckels Zwillingswerk Ag, 5650 Solingen, De
DE102006004588A1 (en) 2006-02-01 2007-08-02 Wmf Württembergische Metallwarenfabrik Ag Knife used in homes, restaurants and hotels comprises hard material cutting element arranged on blade-like base body and forming cutting edge
DE102008013394A1 (en) 2007-04-12 2008-10-16 KAI U.S.A., Ltd. dba Kershaw Knives, Tualatin Composite blade

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
4408 (Werkstoff-Nr. 1.4112)
AISI-Norm 4208 (Werkstoff-Nr. 1.4021)

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Legal Events

Date Code Title Description
R207 Utility model specification
R150 Term of protection extended to 6 years