Handheld power tool
The handheld power tool ( 1 ) has a tool socket ( 2 ) to hold a tool ( 4 ) on a working axis ( 11 ) as well as a striking mechanism ( 6 ) with a striker ( 14 ) that is moved periodically back and forth along the working axis ( 11 ). The striking mechanism ( 6 ) is secured in a tool housing ( 20 ). A handle ( 9 ) is attached to the tool housing ( 20 ) by means of a damper ( 21 ). The damper ( 21 ) has a surface ( 25 ) that is joined to the tool housing ( 20 ) as well as a surface ( 24 ) that is joined to the handle. A block ( 27 ) made of a porous elastomer is arranged so as to be in contact with the tool surface ( 25 ) and with the handle surface ( 26 ). An air-filled cavity ( 30 ) is provided inside the block ( 27 ) between the tool surface ( 25 ) and the handle surface ( 24 ).
1. A handheld power tool comprising:
a tool socket to hold a tool on a working axis;
a striking mechanism with a striker moved periodically back and forth along the working axis;
a tool housing, the striking mechanism being secured in the tool housing;
a handle attached to the tool housing via a damper, the damper having a tool surface joined to the tool housing, a handle surface joined to the handle, and a block made of a porous elastomer arranged to be in contact with the tool surface and with the handle surface, an air-filled cavity being provided inside the block between the tool surface and the handle surface; a dimension of the cavity along the working axis amounting to between 20% and 50% of the distance between the tool surface and the handle surface along the working axis.
2. The handheld power tool as recited in claim 1 , wherein a dimension of the cavity along the working axis is less than a further dimension of the cavity perpendicular to the working axis.
3. The handheld power tool as recited in claim 1 , wherein the cavity is closed along the working axis.
4. The handheld power tool as recited in claim 1 , wherein the dimension of the cavity along the working axis has a varying cross section curved at one end and pointed in another end along an axis perpendicular to the working axis.
5. The handheld power tool as recited in claim 4 , wherein
the cavity is open along an axis perpendicular to the working axis.
6. The handheld power tool as recited in claim 1 wherein the tool surface is joined to the tool housing via a cage rigidly attached to the tool housing.
7. The handheld power tool as recited in claim 1 wherein the handle surface is joined to the handle via a stamp rigidly attached to the handle.
8. The handheld power tool as recited in claim 6 wherein the handle surface is joined to the handle via a stamp rigidly attached to the handle.
9. The handheld power tool as recited in claim 8 wherein the stamp is situated in the cage.