Global Patent Index - EP 1846187 A2

EP 1846187 A2 2007-10-24 - TOOL FOR FINELY MACHINING BORING SURFACES

Title (en)

TOOL FOR FINELY MACHINING BORING SURFACES

Title (de)

WERKZEUG ZUR FEINBEARBEITUNG VON BOHRUNGSOBERFL[CHEN

Title (fr)

OUTIL POUR L'USINAGE DE PRECISION DE SURFACES D'ALESAGES

Publication

EP 1846187 A2 (DE)

Application

EP 06706338 A

Priority

  • EP 2006000515 W
  • DE 102005005469 A
  • DE 102005011000 A

Abstract (en)

[origin: WO2006081954A2] The invention relates to a tool (1) which is used to finely machine boring surfaces comprising a blade plate (5) having at least four geometrically defined blades (9, 9'), whereby two are arranged on the front side (11) and two are arranged on the rear side (53) of the blade plate and at least two guide rails (35, 35') whereby one guide rail (35) is arranged opposite the blade plate (5) and one guide rail (35') of the blade plate (5), when viewed in the direction of rotation, lags by about 45°. Said blade plate (5) is inserted into a groove (33) which is formed in the peripheral surface of the tool and forms a construction angle alpha with an imaginary diametrical line (D1) of the tool. The blade plate (5) comprises, respectively, a cutting surface (49) which is associated with a blade (9, 9') and a free surface (55) which cuts itself and the cutting lines thereof form the cut (9). The free surface (55) forms a free angle ß with an imaginary plane (E) which is perpendicular to the central plane (M) of the blade plate and which cuts the blade. An adjusting device (29) which is used to adjust the projection of the blade plate (5) over the peripheral surface of the tool (1) is provided. Said tool is characterised in that the construction angle alpha and the free angle ß are adapted to one another such that the equation alpha - ß = approx. 1°, and also an effective free angle of approximately 1 ° is adjusted.

IPC 8 full level (invention and additional information)

B23D 77/04 (2006.01)

CPC (invention and additional information)

B23D 77/048 (2013.01); B23D 2277/04 (2013.01); B23D 2277/201 (2013.01); B23D 2277/26 (2013.01); B23D 2277/60 (2013.01); B23D 2277/62 (2013.01)

Citation (search report)

See references of WO 2006081954A3

Designated contracting state (EPC)

DE ES FR GB IT SE

Designated extension state (EPC)

AL BA HR MK YU

EPO simple patent family

WO 2006081954 A2 20060810; WO 2006081954 A3 20070426; EP 1846187 A2 20071024

INPADOC legal status


2015-11-25 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20151023

2008-05-14 [DAX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT (TO ANY COUNTRY) DELETED

2008-05-14 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION):

- Designated State(s): DE ES FR GB IT SE

2007-12-12 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20071026

2007-12-12 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION):

- Designated State(s): DE ES FR GB IT SE

2007-10-24 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

2007-10-24 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Countries: AL BA HR MK YU