Handheld power tool
AssigneeHilti Aktiengesellschaft
InventorsMichael WIERER, Adrian SCHERRER, Fabian MARTIN, Josef ALTHAUS
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Abstract
A handheld power tool is disclosed. The handheld power tool has a drive oscillating along a working axis and a vibration damper. The vibration damper has a mass element suspended in a spring mechanism. The spring mechanism acts with a first spring stiffness and acts with a second spring stiffness. The first spring stiffness is different from the second spring stiffness.
Claims16
A handheld power tool, comprising:
- a drive, wherein the drive is oscillatable along a working axis of the handheld power tool;
- and
- a vibration damper, wherein the vibration damper includes:
- a spring mechanism;
- and
- a mass element suspended in the spring mechanism;
- wherein the spring mechanism is actable with a first spring stiffness on the mass element in response to a deflection of the mass element out of a basic position and in a first direction parallel to the working axis;
- wherein the spring mechanism is actable with a second spring stiffness on the mass element in response to a deflection out of the basic position and in a second direction, wherein the second direction is opposite from the first direction;
- and wherein the first spring stiffness is different from the second spring stiffness.
The handheld power tool according to claim 5, wherein the two prestressed springs are fixedly connected to the mass element.
The handheld power tool according to claim 7, wherein the bending spring is relaxable when the mass element is in the basic position.
A handheld power tool, comprising:
- a drive, wherein the drive is oscillatable along a working axis of the handheld power tool;
- and
- a vibration damper, wherein the vibration damper includes:
- a spring mechanism with a first spring element and a second spring element;
- and
- a mass element disposed between the first spring element and the second spring element;
- wherein the first spring element has a first spring stiffness and the second spring element has a second spring stiffness and wherein the first spring stiffness is different from the second spring stiffness.
Dependencies are inferred from the claim text.