Power tool with an eccentrically driven working tool

Details Power tool with an eccentrically driven working tool Power tool with an eccentrically driven working tool

2007-06-05

2007-06-05

Peterson, Kenneth E. (Department: 3724)

Cutlery

Cutting tools

Saw

C083S676000, C030S390000

Reexamination Certificate

active

11238495

ABSTRACT:
A power tool, in particular a circular saw, for eccentrically a rotatable working tool and, in particular, a circular saw blade, includes a roller device (13) supported on a tool housing (6) and having at least two roller pairs (12, 16) each having a first roller (10, 14) and a second roller (17, 19) engageable with opposite sides of the working tool (4), with at least one of the rollers (10, 14, 17, 19) of at least one roller pair (12, 16) being rotatable by a tool motor (8) which is located in the housing (6), for driving the working tool (4), and a pivot device (20) for pivoting the first rollers (10, 14) together relative to the second rollers (17, 19) between a release position in which the working tool (4) is brought in or removed from the roller device (13), and a drive position in which a forcelocking connection between the at least one of the rollers (10) of the at least one roller pair (12, 16) and the working tool (4) is established.

REFERENCES:
patent: 4646607 (1987-03-01), Johansson
patent: 4800650 (1989-01-01), Johansson
patent: 6569001 (2003-05-01), Rudolf et al.
patent: 6785971 (2004-09-01), McDonnell
Magrab, Edward. Integrated Product and Process Design and Development: The Product Realization Process. CRC Press. © 1997. ISBN 0-8493-8483-4.

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