Title:
TOOL HOLDER FOR A ROTATING TOOL
Document Type and Number:
WIPO Patent Application WO2005120751
Kind Code:
A3
Abstract:
A tool holder (1), in particular, of the clamping chuck type, is disclosed, the housing section (5) of which comprises clamping means (9), provided for fixing a shaft (15) of a rotating tool central to a rotational axis (7) of the tool holder (1) and defining a housing opening (13) for said shaft (15). The clamping means (9) can be radially adjusted between a radially-extended release position for the insertion or removal of the shaft (15) and a clamping position, in which the clamping means (9) exert a radial compression seating force on the shaft (15), holding the shaft (15). The clamping means (9) are provided with a clamping surface (17) with a cylindrical contour, which makes a surface contact with the outer circumferential surface (19) of the shaft (15) in the clamping position. The region of the tool holder (1) forming the clamping surface (17) comprises a spiral groove around the rotational axis (7), or a number of annular grooves (21) around the rotational axis (7) at an axial separation from each other, which, viewed in the direction of the rotational axis (7), are connected in one piece between the adjacent turns of the spiral groove or between adjacent annular grooves (21), forming support regions at an axial separation from each other, projecting towards the rotational axis (7), the peak surfaces (27) of which, facing the rotational axis (7), form the cylindrical clamping surface (17).
Inventors:
HAIMER FRANZ (DE)
Application Number:
PCT/EP2005/006365
Publication Date:
August 10, 2006
Filing Date:
June 14, 2005
Export Citation:
Assignee:
FRANZ HAIMER MASCHB KG (DE)
HAIMER FRANZ (DE)
HAIMER FRANZ (DE)
International Classes:
B23B31/00; B23B31/02; B23B31/10; B23B31/11; B23P11/02
Foreign References:
| US5301961A | 1994-04-12 | |||
| US2610066A | 1952-09-09 | |||
| FR2489189A1 | 1982-03-05 |
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