Tool holding device for a hammer drill or chisel hammer with idling stroke and recoil damping

12:

• The tool holding device as recited in claim 11 wherein each of the holders has a stop ring and a locking ring for positively fastening the stop ring to the tool holding body in a pretension-generating axial position.

13:

• The tool holding device as recited in claim 12 wherein the stop ring for the first elastomer element has an L-shaped cross section with two legs and surrounding the first elastomer element via the two legs on the outer side.

14:

• The tool holding device as recited in claim 13 wherein the first elastomer element has a rectangular cross section.

15:

• The tool holding device as recited in claim 12 wherein the stop ring for the second elastomer element has an L-shaped cross section with an axial leg and is arranged on the tool holding body in such a way that an outside of the axial leg thereof comes to rest on the inner side.

16:

• The tool holding device as recited in claim 15 wherein the second elastomer element has a circular cross section.

17:

• The tool holding device as recited in claim 12 wherein the locking rings are designed as snap rings made of spring steel.

18:

• The tool holding device as recited in claim 11 wherein the first and second elastomer elements are annular and arranged concentrically with an axis of rotation of the tubular tool holding body and are the sole elastomer elements for implementing the idling stroke and recoil damping.

19:

• The tool holding device as recited in claim 11 wherein the first and second elastomer elements are fastened to the tool holding body with an axial prestressing path of 1 to 30% of the axial element length.

20:

• A hammer drill or chisel hammer for working a mineral material, the hammer drill or chisel hammer comprising the tool holding device as recited in claim 11.

21:

• A method for employing the hammer drill or chisel hammer as recited in claim 20 comprising working concrete or rock with the hammer drill or chisel hammer.