Handheld power tool
AssigneeFelco Motion SA
InventorAlain Zurcher
Life of this patent
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Abstract
The invention related to a handheld power tool having a linear actuator and a removable member, e.g. a blade, wherein the movable member is directly connected to the actuator via a connecting rod, which pushes the movable member during a work stroke and pulls the movable member to a starting position during a return stroke. One end of the connected rod is connected, via a concentric dual ball-and-socket joint, to the actuator as well as to a guide ring that slides inside the cylindrical body of the tool. Lateral and bending forces are taken up and transmitted to the body of the tool by the guide ring without affecting the actuator. The ring defines a sealed space that houses the actuator. An axial cavity of the connecting rod partially houses the actuator in the retracted position, thus reducing the length of the tool.
Claims9
A handheld electric tool comprising an actuator acting by means of a connecting rod on a movable element configured to perform, under the action of the actuator, a work stroke in a first direction and a return stroke in a second direction, opposite the first direction,
- in which the actuator is used to provide a work force during the work stroke and a return force substantially smaller than the work force during the return stroke, and in which the work force is transmitted by pushing the movable element,
- wherein
- the connecting rod is connected to the actuator via a first ball joint linkage and to a guide element via a second ball joint linkage, which is concentric with said first ball joint linkage.
Dependencies are inferred from the claim text.