Cutting by use of rotating axially moving tool – Tool or tool with support – Including detailed shank
Patent
1995-01-30
1996-05-28
Howell, Daniel W.
Cutting by use of rotating axially moving tool
Tool or tool with support
Including detailed shank
279 19, 408240, B23B 5102, B23B 3122
Patent
active
055204880
ABSTRACT:
A tool bit for insertion into a tool bit chuck in a manually operated tool, used for cutting and/or percussion drilling, has an axially extending chucking shank (2) with a free end. The chucking shank (2) has two locking grooves (6, 7) located diametrically opposite one another and closed at their ends spaced apart in the axial direction. In addition, the chucking shank has two axially extending rotary entrainment grooves (8, 9) disposed diametrically opposite one another and open at the free end. The transverse cross-sectional areas of the rotary entrainment grooves (8, 9) are different. To increase the transmittable torque, an additional axially extending groove (11) open at the free end of the chucking shank extends through and is positioned asymmetrically to one of the locking grooves (7). An end shoulder face (7a) for axially securing the tool bit is formed in the end region of the locking groove located laterally outwardly from the axially extending groove (11).
REFERENCES:
patent: 5028057 (1991-07-01), Wanner
patent: 5076371 (1991-12-01), Obermeier et al.
patent: 5174698 (1992-12-01), Obermeier
patent: 5397203 (1995-03-01), Kleine et al.
Hilti Aktiengesellschaft
Howell Daniel W.
LandOfFree
Tool bit and tool bit chuck for manually operated tool does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tool bit and tool bit chuck for manually operated tool, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tool bit and tool bit chuck for manually operated tool will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-782057