EP0006400A1 - Mandrin cylindrique pour feuille abrasive de dimensions données - Google Patents

Mandrin cylindrique pour feuille abrasive de dimensions données Download PDF

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Publication number
EP0006400A1
EP0006400A1 EP78100008A EP78100008A EP0006400A1 EP 0006400 A1 EP0006400 A1 EP 0006400A1 EP 78100008 A EP78100008 A EP 78100008A EP 78100008 A EP78100008 A EP 78100008A EP 0006400 A1 EP0006400 A1 EP 0006400A1
Authority
EP
European Patent Office
Prior art keywords
mandrel
bore
clamping
slot
sheet
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.)
Granted
Application number
EP78100008A
Other languages
German (de)
English (en)
Other versions
EP0006400B1 (fr
Inventor
Walter Oberer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP19780100008 priority Critical patent/EP0006400B1/fr
Priority to DE7878100008T priority patent/DE2861255D1/de
Publication of EP0006400A1 publication Critical patent/EP0006400A1/fr
Application granted granted Critical
Publication of EP0006400B1 publication Critical patent/EP0006400B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D9/00—Wheels or drums supporting in exchangeable arrangement a layer of flexible abrasive material, e.g. sandpaper
    • B24D9/04—Rigid drums for carrying flexible material

Definitions

  • the invention relates to a cylindrical mandrel for a grinding or polishing sheet of a predetermined size, which is characterized by a particularly firm hold even with axial movement of the mandrel.
  • the present invention is based on the object, even with axial stress on the grinding tool, with certainty. and to achieve a firm hold in the simplest possible way.
  • a prism has a longitudinal bore with a corresponding diameter for receiving the sanding sheet and mandrel and has a slot arranged at an acute angle on one longitudinal edge, the depth of which corresponds to the clamping length of the sanding sheet to be folded,
  • the mandrel according to the invention consists of a cylindrical body A with stepped part Ab and with a small hole Ac and longitudinal slot Ad at one end and an enlarged hole Aa with screw thread at the other end.
  • the threaded pin Va of an extension V which has a central longitudinal bore Vb, also fits into the screw thread of the bore Aa having.
  • the clamping mandrel B is greatly flattened at its front end and, in addition to a cutting-like front end Bd, has notches Ba on the narrow sides, between which prongs remain.
  • the auxiliary device for this consists of a prism D with a longitudinal bore Da for receiving the mandrel A, including an E sanding sheet and a slot De arranged at an acute angle to the longitudinal edge, the depth of which corresponds to the clamping length of the sanding sheet ends Ea to be folded.
  • the grain side Eb of the sanding sheet E is on the outside in order to ensure that after the introduction of the sanding sheet E in the position of the clamping mandrel B according to FIG. 8 and its twisting into the stellurg according to FIG.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
EP19780100008 1978-09-13 1978-09-13 Mandrin cylindrique pour feuille abrasive de dimensions données Expired EP0006400B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19780100008 EP0006400B1 (fr) 1978-09-13 1978-09-13 Mandrin cylindrique pour feuille abrasive de dimensions données
DE7878100008T DE2861255D1 (en) 1978-09-13 1978-09-13 Cylindrical mandrel for an abrasive sheet of a given size

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19780100008 EP0006400B1 (fr) 1978-09-13 1978-09-13 Mandrin cylindrique pour feuille abrasive de dimensions données

Publications (2)

Publication Number Publication Date
EP0006400A1 true EP0006400A1 (fr) 1980-01-09
EP0006400B1 EP0006400B1 (fr) 1981-09-30

Family

ID=8185883

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19780100008 Expired EP0006400B1 (fr) 1978-09-13 1978-09-13 Mandrin cylindrique pour feuille abrasive de dimensions données

Country Status (2)

Country Link
EP (1) EP0006400B1 (fr)
DE (1) DE2861255D1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1374052A (en) * 1920-02-11 1921-04-05 Brauner Pincus Abrasive roller
GB214834A (en) * 1923-05-01 1924-05-01 Sidney Smith Improvements in or relating to grinding, buffing, and polishing rolls and like rotary devices
DE466008C (de) * 1928-09-29 Maschf Klemm- und Spannvorrichtung fuer den biegsamen Schleifbelag von Schleiftrommeln
US2450617A (en) * 1946-01-25 1948-10-05 Smith Joseph Leigh Buffing drum
US2553432A (en) * 1949-08-30 1951-05-15 Maxwell K Reynolds Sander
FR1039994A (fr) * 1951-07-19 1953-10-12 Ponceuse

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE466008C (de) * 1928-09-29 Maschf Klemm- und Spannvorrichtung fuer den biegsamen Schleifbelag von Schleiftrommeln
US1374052A (en) * 1920-02-11 1921-04-05 Brauner Pincus Abrasive roller
GB214834A (en) * 1923-05-01 1924-05-01 Sidney Smith Improvements in or relating to grinding, buffing, and polishing rolls and like rotary devices
US2450617A (en) * 1946-01-25 1948-10-05 Smith Joseph Leigh Buffing drum
US2553432A (en) * 1949-08-30 1951-05-15 Maxwell K Reynolds Sander
FR1039994A (fr) * 1951-07-19 1953-10-12 Ponceuse

Also Published As

Publication number Publication date
DE2861255D1 (en) 1981-12-10
EP0006400B1 (fr) 1981-09-30

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