Pendulum Stroke Device for a Power Tool, Pendulum Stroke Unit for such a Pendulum Stroke Device, and Power Tool with such a Pendulum Stroke Device

Abstract

A pendulum stroke device for a power tool, in particular a sawing machine is disclosed. The pendulum stroke device has a thrust crank unit, in particular a Scotch yoke unit, for converting a rotary motion into at least essentially linear oscillation, which has at least one crank unit that can be actuated by a gear unit of the power tool and has at least one crank element with a crank axis, and includes at least one fork element, which is bounded by a receiving region for the crank element. The pendulum stroke device further has at least one lift rod, which is connected to the fork element at one axial end, for transmitting the linear oscillation to a tool holder element of the power tool with a thrust direction running essentially parallel to a main direction of extension of the lift rod. In addition, the pendulum stroke device has at least one pendulum stroke unit, which has at least one first guide element formed fixedly with the crank unit, which has a first guide surface extending essentially perpendicular to the crank axis, and at least one second guide element facing the first guide element, which is at least firmly connected to the fork element, which has a second guide surface that is at least partially oblique to the first guide surface and which, in at least one operating state, is intended to abut against the first guide surface and, when the crank unit is rotated, to cause a pendulum stroke movement of the fork element to run in a direction essentially parallel to the crank axis.

Dependencies are inferred from the claim text.