DK150450C - DRILL UNIT FOR MANUFACTURING CUTTING DRILLS - Google Patents

DRILL UNIT FOR MANUFACTURING CUTTING DRILLS

Info

Publication number
DK150450C
DK150450C DK137081A DK137081A DK150450C DK 150450 C DK150450 C DK 150450C DK 137081 A DK137081 A DK 137081A DK 137081 A DK137081 A DK 137081A DK 150450 C DK150450 C DK 150450C
Authority
DK
Denmark
Prior art keywords
drill
drill shaft
unit
drill unit
shaft
Prior art date
Application number
DK137081A
Other languages
Danish (da)
Other versions
DK137081A (en
DK150450B (en
Inventor
Artur Fischer
Original Assignee
Fischer Gmbh & Co Kg Fischer W
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 by Fischer Gmbh & Co Kg Fischer W filed Critical Fischer Gmbh & Co Kg Fischer W
Publication of DK137081A publication Critical patent/DK137081A/en
Publication of DK150450B publication Critical patent/DK150450B/en
Application granted granted Critical
Publication of DK150450C publication Critical patent/DK150450C/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/005—Cylindrical shanks of tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/0018—Drills for enlarging a hole
    • B23B51/0027—Drills for enlarging a hole by tool swivelling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2231/00—Details of chucks, toolholder shanks or tool shanks
    • B23B2231/02—Features of shanks of tools not relating to the operation performed by the tool
    • B23B2231/0276—Keyways
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2260/00—Details of constructional elements
    • B23B2260/138—Screw threads

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Drilling And Boring (AREA)
  • Earth Drilling (AREA)
  • Drilling Tools (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Branch Pipes, Bends, And The Like (AREA)

Abstract

1. Drill unit which is intended for producing drilled holes (16) having undercuts (11) and which comprises a drill shaft (1) and a laminar drill bit (2) connected thereto having lateral cutting edges (4, 5) which, apart from the cutting edges at the tip (3), project radially beyond the drill shaft (1), and the unit being provided with a stop sleeve (7) that can be fastened on the drill shaft (1) and is supported, to form a swivel bearing, in a depression (13) in a stop plate (15) mounted over the drill shaft (1), characterised in that part (1a) of the drill shaft (1) that engages in the drill chuck has an increased diameter in order to form an abutment against which the end of the stop sleeve (7) remote from the drilled hole (16) rests.
DK137081A 1980-04-25 1981-03-26 DRILL UNIT FOR MANUFACTURING CUTTING DRILLS DK150450C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3015999A DE3015999C2 (en) 1980-04-25 1980-04-25 Drilling unit for producing an undercut in the borehole
DE3015999 1980-04-25

Publications (3)

Publication Number Publication Date
DK137081A DK137081A (en) 1981-10-26
DK150450B DK150450B (en) 1987-03-02
DK150450C true DK150450C (en) 1987-11-23

Family

ID=6100949

Family Applications (1)

Application Number Title Priority Date Filing Date
DK137081A DK150450C (en) 1980-04-25 1981-03-26 DRILL UNIT FOR MANUFACTURING CUTTING DRILLS

Country Status (10)

Country Link
EP (1) EP0038917B1 (en)
JP (1) JPS56167409A (en)
AT (1) ATE6750T1 (en)
BR (1) BR8102479A (en)
DE (1) DE3015999C2 (en)
DK (1) DK150450C (en)
ES (1) ES257733Y (en)
GR (1) GR73562B (en)
HU (1) HU183407B (en)
YU (1) YU54681A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3423633A1 (en) * 1984-06-27 1986-01-09 Artur Dr.H.C. 7244 Waldachtal Fischer DRILLING DEVICE FOR PRODUCING DRILL HOLES WITH UNDERCUT
DE3711903A1 (en) * 1987-04-08 1988-10-20 Fischer Artur Werke Gmbh DRILLING DEVICE FOR PRODUCING DRILL HOLES WITH UNDERCUT
DE3821056A1 (en) * 1988-06-22 1989-12-28 Fischer Artur Werke Gmbh DRILL FOR PRODUCING DRILL HOLES WITH UNDERCUT
DE3924044A1 (en) * 1989-07-21 1991-01-24 Fischer Artur Werke Gmbh DEVICE FOR PRODUCING AN UNDERCUT IN A DRILL HOLE
DE4014224A1 (en) * 1990-05-04 1991-11-07 Fischer Artur Werke Gmbh DEVICE FOR PRODUCING DRILL HOLES WITH UNDERCUT
DE4121621A1 (en) * 1991-06-29 1993-01-07 Fischer Artur Werke Gmbh Drill for work on masonry behind wall surfacings - has plate-shaped edge on damping element which is curved with pins and movable centre

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE670370C (en) * 1937-04-23 1939-01-17 Spiralbohrerfabrik G A Hartner Cutting tool composed of two parts, in particular twist drill or reamer or end mill
US4154311A (en) * 1975-09-05 1979-05-15 Artur Fischer Drilling assembly
DE2603431C2 (en) * 1976-01-30 1984-08-09 Artur 7244 Waldachtal Fischer Drilling unit
DE2657000C2 (en) * 1976-12-16 1985-10-10 Artur Dr.H.C. 7244 Waldachtal Fischer Drilling unit for producing drill holes with an undercut
US4113405A (en) * 1977-08-08 1978-09-12 Dillinger Lester L Apparatus for drilling or reaming
DE2746029C2 (en) * 1977-10-13 1985-10-10 Fischer, Artur, Dr.H.C., 7244 Waldachtal Drilling unit

Also Published As

Publication number Publication date
EP0038917A3 (en) 1981-12-09
ES257733Y (en) 1982-05-16
ATE6750T1 (en) 1984-04-15
EP0038917A2 (en) 1981-11-04
HU183407B (en) 1984-05-28
EP0038917B1 (en) 1984-03-21
BR8102479A (en) 1982-01-05
GR73562B (en) 1984-03-15
DK137081A (en) 1981-10-26
ES257733U (en) 1981-11-16
DE3015999A1 (en) 1981-11-05
YU54681A (en) 1983-06-30
DK150450B (en) 1987-03-02
JPS56167409A (en) 1981-12-23
DE3015999C2 (en) 1984-05-10

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Legal Events

Date Code Title Description
PUP Patent expired
PBP Patent lapsed