Electrical drive-in tool
AssigneeHilti Aktiengesellschaft
InventorsIwan Wolf, Ulrich Schiestl
Life of this patent
Estimating the term…
Abstract
A drive-in tool for driving in fastening elements includes a driving ram (13) displaceable in a guide (12) and driven by a drive flywheel (32), a drive unit (30) having an electric motor (31) for rotating the drive flywheel (32), a drive coupling (35) for connecting a coupling section (15) of the driving ram (13) with the at least one drive flywheel (32), and an acceleration device (40) for accelerating the driving ram (13), together with the coupling section (15) in a direction of the drive flywheel (32).
Claims11
An electrical drive-in tool for driving in fastening elements, comprising:
- a guide (12);
- a driving ram (13) displaceable in the guide (12) for driving in a fastening element;
- at least one drive flywheel (32) for driving the driving ram (13);
- a drive unit (30) for driving the at least one drive flywheel (32) and including an electric motor (31) for rotating the at least one drive flywheel (32);
- a drive coupling (35) for connecting a coupling section (15) of the driving ram (13) with the at least one drive flywheel (32);
- and
- an acceleration device (40), including an acceleration flywheel (142) having a maximal circumferential speed which is smaller than a maximal circumferential speed of the drive flywheel (32), for transmitting an energy from about 50 mJ to about 20 J to the driving ram for accelerating the driving ram (13), together with the coupling section (15) thereof, in a direction of the drive flywheel (32).
An electrical drive-in tool for driving in fastening elements, comprising:
- a guide (12);
- a driving ram (13) displaceable in the guide (12) for driving in a fastening element;
- at least one drive flywheel (32) for driving the driving ram (13) in a drive-in direction;
- a drive unit (30) for driving the at least one drive flywheel (32) and including an electric motor (31) for rotating the at least one drive flywheel (32);
- a drive coupling (35) for connecting a coupling section (15) of the driving ram (13) with the at least one drive flywheel (32);
- and
- an acceleration device (40), including an acceleration flywheel (142) having a maximal circumferential speed which is smaller than a maximal circumferential speed of the drive flywheel (32), for transmitting an energy from about 50 mJ to about 20 J to the driving ram for accelerating the driving ram (13), together with the coupling section (15) thereof, in the drive-in direction.
Dependencies are inferred from the claim text.