DE84413C - - Google Patents

Info

Publication number
DE84413C
DE84413C DE189584413D DE84413DA DE84413C DE 84413 C DE84413 C DE 84413C DE 189584413 D DE189584413 D DE 189584413D DE 84413D A DE84413D A DE 84413DA DE 84413 C DE84413 C DE 84413C
Authority
DE
Germany
Prior art keywords
drill
cutting edges
drills
drill rod
grinding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE189584413D
Other languages
German (de)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of DE84413C publication Critical patent/DE84413C/de
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/02—Twist drills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/14—Configuration of the cutting part, i.e. the main cutting edges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/18—Configuration of the drill point
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/40—Flutes, i.e. chip conveying grooves
    • B23B2251/406—Flutes, i.e. chip conveying grooves of special form not otherwise provided for

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Den Gegenstand der vorliegenden Erfindung bildet eine Verbesserung des durch Patent Nr. 83531 geschützten Bohrerstabes, welche darin besteht, dafs die Stegrippen b paarig oder ungleichpaarig sich wiederholen, wodurch ein mehrfacher Doppelbohrer hergestellt wird.The object of the present invention is an improvement of the drill rod protected by patent no. 83531, which consists in the fact that the web ribs b repeat themselves in pairs or unequal pairs, whereby a multiple double drill is produced.

Die beiliegende Zeichnung veranschaulicht den Erfindungsgegenstand wie folgt:The accompanying drawing illustrates the subject matter of the invention as follows:

Fig. ι zeigt den einen Bohrerstab mit axial verlaufenden Stegrippen in der Ansicht,Fig. Ι shows a drill rod with axially extending web ribs in the view,

Fig. 2 zeigt die Oberansicht von Fig. 1.FIG. 2 shows the top view of FIG. 1.

Der Querschnitt dieses Bohrerstabes ist derart gestaltet, dafs derselbe anstatt mit zwei Stegrippen mit mehreren sich paarig oder ungleichpaarig wiederholenden versehen ist, so dafs durch das Anschleifen des Bohrerstabes mehrere Schneiden, d. h. mehrere Doppelbohrer entstehen.The cross-section of this drill rod is designed so that the same instead of two Web ribs are provided with several repeating pairs or unequal pairs, so that by grinding the drill rod several cutting edges, d. H. several double drills develop.

Der in der beiliegenden Zeichnung beispielsweise dargestellte Bohrerstab besitzt vier Stegrippen, so dafs sechs Schneiden, also drei Bohrer entstehen, von welchen der Bohrer abb dem Bohrer bb-dd und dieser demBohrer dd-ee vorbohrt.The drill rod shown for example in the accompanying drawing has four web ribs, so that six cutting edges, i.e. three drills, are produced, of which the drill abb pre- drills the drill bb-dd and the drill pre-drills the drill dd-ee .

Claims (1)

Patent-Anspruch:Patent claim: Der unter Patent Nr. 83531 geschützte Bohrer dahin abgeändert, dafs auf den den Schneidkanten zugekehrten Flächen statt je einer deren mehrere scharfkantige Längsrippen angeordnet sind, zum Zwecke, beim Anschleifen des Bohrers drei und mehr Schneidkanten zu schaffen.The drill bit protected under patent no. 83531 modified so that on the surfaces facing the cutting edges instead of one each several sharp-edged longitudinal ribs are arranged for the purpose of grinding the drill to create three or more cutting edges.
DE189584413D 1894-06-02 1895-03-14 Expired DE84413C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE83531T 1894-06-02
DE84413T 1895-03-14

Publications (1)

Publication Number Publication Date
DE84413C true DE84413C (en) 1895-12-12

Family

ID=40790840

Family Applications (2)

Application Number Title Priority Date Filing Date
DE189483531D Expired DE83531C (en) 1894-06-02 1894-06-02 Cylindrical drill with straight or helically wound longitudinal groove
DE189584413D Expired DE84413C (en) 1894-06-02 1895-03-14

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE189483531D Expired DE83531C (en) 1894-06-02 1894-06-02 Cylindrical drill with straight or helically wound longitudinal groove

Country Status (1)

Country Link
DE (2) DE83531C (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989002328A1 (en) * 1987-09-10 1989-03-23 Mca Micro Crystal Ag Cutting tool, in particular drill and/or milling cutter and its process for producing it
DE29601653U1 (en) * 1995-03-30 1996-08-01 Guehring Joerg Dr Cutting tool
DE19511828A1 (en) * 1995-03-30 1996-10-02 Joerg Dr Guehring Cutting tool, esp. drill, milling tool, tap drill, reamer or chamfering drill
US6213692B1 (en) 1995-03-30 2001-04-10 Vilab Ag Cutting tool
DE102008004564A1 (en) 2008-01-15 2009-07-23 EMUGE-Werk Richard Glimpel GmbH & Co. KG Fabrik für Präzisionswerkzeuge Burr tool with point
EP2527066A3 (en) * 2011-05-23 2015-04-15 Sharon-Cutwell Co., Inc. Drilling tool

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4222690A (en) * 1977-12-03 1980-09-16 Ryosuke Hosoi Drill having cutting edges with the greatest curvature at the central portion thereof
DE3624617C2 (en) * 1986-07-21 1995-06-29 Almue Praezisionswerkzeuge Gmb Drilling tool

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989002328A1 (en) * 1987-09-10 1989-03-23 Mca Micro Crystal Ag Cutting tool, in particular drill and/or milling cutter and its process for producing it
DE3730378A1 (en) * 1987-09-10 1989-03-23 Micro Crystal Ag CUTTING TOOL, ESPECIALLY DRILLING AND / OR MILLING
DE29601653U1 (en) * 1995-03-30 1996-08-01 Guehring Joerg Dr Cutting tool
DE19511828A1 (en) * 1995-03-30 1996-10-02 Joerg Dr Guehring Cutting tool, esp. drill, milling tool, tap drill, reamer or chamfering drill
DE19511828C2 (en) * 1995-03-30 1998-09-17 Joerg Dr Guehring Rotating cutting tool
US6213692B1 (en) 1995-03-30 2001-04-10 Vilab Ag Cutting tool
DE19511828C5 (en) * 1995-03-30 2012-05-10 Jörg Gühring Rotary cutting tool
DE102008004564A1 (en) 2008-01-15 2009-07-23 EMUGE-Werk Richard Glimpel GmbH & Co. KG Fabrik für Präzisionswerkzeuge Burr tool with point
WO2009090042A2 (en) 2008-01-15 2009-07-23 EMUGE-Werk Richard Glimpel GmbH & Co. KG Fabrik für Präzisionswerkzeuge Drilling tool having point thinning
DE102008004564B4 (en) * 2008-01-15 2013-04-11 EMUGE-Werk Richard Glimpel GmbH & Co. KG Fabrik für Präzisionswerkzeuge Burr tool with point
EP2527066A3 (en) * 2011-05-23 2015-04-15 Sharon-Cutwell Co., Inc. Drilling tool
US9662717B2 (en) 2011-05-23 2017-05-30 Sharon-Cutwell Co., Inc. Drilling tool

Also Published As

Publication number Publication date
DE83531C (en) 1895-10-21

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