Hand-held power tool, in particular electrically driven hand-held power tool
A handheld power tool has a housing having two separate housing parts, between which a primary damping element is disposed, wherein a secondary damping element is disposed acting parallel to said primary damping element. During regular function of the primary damping element, the secondary damping element is at least approximately force-free. In the event of a changed relative position between the two housing parts, the damping occurs via the secondary damping element.
1. An electrically driven hand-held power tool ( 1 ), comprising a drive unit, which is located in a housing ( 2 ) and has a drive connection ( 7 ) to a tool ( 9 ),
wherein the housing ( 2 ) includes two separate housing parts ( 3 , 4 ), between which a primary damping element ( 5 ) is situated,
wherein a secondary damping element ( 14 ), which functions in parallel with the primary damping element ( 5 ), is situated between the two housing parts ( 3 , 4 ) and interacts with a securing part ( 10 ) that bridges the two housing parts ( 3 , 4 ),
wherein the securing part ( 10 ) is fixedly connected to one housing part ( 4 ), and it is loosely connected to the other housing part ( 3 ) via the secondary damping element ( 14 ),
wherein during regular functioning of the primary damping element ( 5 ), the secondary damping element ( 14 ) is at least approximately force-free, and, if the primary damping element ( 5 ) becomes deformed beyond a defined extent and, therefore, the relative position between the housing parts ( 3 , 4 ) changes, damping is performed by the secondary damping element ( 14 ), and
wherein the securing part ( 10 ) is designed as wire cable, and the secondary damping part ( 14 ) is designed as a tube ( 16 ) drawn over the wire cable.
2. The hand-held power tool as recited in claim 1 ,
wherein the securing part ( 14 ) is connected via a bolt-receptacle-connection device to one housing part ( 13 ), and the secondary damping element ( 14 ) at least partially encloses the bolt ( 13 ).
3. The hand-held power tool as recited in claim 1 ,
wherein a common secondary damping element ( 14 ) is provided for two securing parts ( 10 ) situated in the left-hand and right-hand regions of the hand-held power tool ( 1 ).
4. The hand-held power tool as recited in claim 1 ,
wherein the secondary damping element ( 14 ) is designed as a standalone component and is located on the securing part ( 10 ).
5. The hand-held power tool as recited in claim 1 ,
wherein the secondary damping element ( 14 ) is integrated in the securing part ( 10 ).
6. The hand-held power tool as recited in claim 5 ,
wherein the secondary damping element ( 14 ) is designed as a single piece with the securing part ( 10 ).
7. The hand-held power tool as recited in claim 5 ,
wherein the secondary damping element ( 14 ) is designed as wire cable, carbon fiber or coiled spring, which is incorporated in the material of the securing part ( 10 ).
8. The hand-held power tool as recited in claim 1 ,
wherein, during regular operation, an air gap is present between the secondary damping element ( 14 ) and a component of the housing part ( 3 , 4 ) to be connected.
9. The hand-held power tool as recited in claim 1 ,
wherein, during regular operation, the secondary damping element ( 14 ) bears with contact against a component of the housing part ( 3 , 4 ) to be connected.
10. The hand-held power tool as recited in claim 1 ,
wherein the secondary damping element ( 14 ) is composed of damping material such as an elastomer.
11. The hand-held power tool as recited in claim 1 ,
wherein the secondary damping element ( 14 ) contains a weave composed, e.g., of metal and/or plastic, as the damping material.
12. The hand-held power tool as recited in claim 1 ,
wherein the secondary damping element ( 14 ) contains a fluid or hydraulic medium as the damping material.