Tool mounting device
View Patent ↗The current invention describes a tool mounting device that permits a rotating attachment of a tool to an excavator arm in such a way that the tool can be used for work in relatively small work spaces, independent of the alignment of the excavator arm and the excavator.
1. A tool mounting device for mounting tools ( 18 ) onto an excavator arm ( 12 ), which has an excavator arm attaching device ( 14 ) for attaching the tool mounting device ( 10 ) to the excavator arm ( 12 ) at one end, a tool attaching device ( 16 ) for attaching tools ( 18 ) to the tool mounting device ( 10 ) at another end and spaced from the excavator arm attaching device ( 14 ) in a first direction, and between these two attaching devices as considered in the first direction, a spacer device ( 20 ) that connects excavator arm attaching device ( 14 ) to the tool attaching device ( 16 ) in a movable fashion, characterized in that the spacer device ( 20 ) includes a rotation device ( 22 ) that makes it possible to rotate the tool attaching device ( 16 ) in relation to the excavator arm attaching device ( 14 ), wherein the spacer device ( 20 ) is fastened eccentrically to the rotation device ( 22 ) in a second direction which is transverse to the first direction.
2. The tool mounting device according to claim 1 , wherein the spacer device ( 20 ) is fastened eccentrically to the rotation device ( 22 ) so that it protrudes beyond the dimensions of the excavator arm attaching device ( 14 ).
3. The tool mounting device according to claim 1 , wherein the spacer device ( 20 ) has one or more hydraulic lines ( 24 ), which are connected to hydraulic lines of the excavator arm ( 12 ) at one end and are connected to the tool ( 18 ) to be actuated at another end.
4. The tool mounting device according to claim 3 , wherein the hydraulic lines ( 24 ) are routed through the rotation device ( 22 ).
5. The tool mounting device according to claim 1 , wherein the rotation device ( 22 ) is driven mechanically, hydraulically, or electrically.
6. The tool mounting device according to claim 1 , wherein the rotation device ( 22 ) has no stop, but can instead be rotated endlessly.
7. The tool mounting device according to claim 1 , wherein the excavator arm attaching device ( 14 ) is embodied in the form of a quick-change plate.
8. The tool mounting device according to claim 1 , wherein the tool ( 18 ) is an earth-compacting device.
9. The tool mounting device according to claim 8 , wherein the earth-compacting device ( 18 ) has a compacting plate ( 26 ) that moves up and down.