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US 2022/0134446 A1Published application
A Tool Holding Arrangement, Thread Insert, Rotatable Shaft and Drill Unit
AssigneeHusqvarna AB
InventorDavid Grennhag
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AssigneeHusqvarna AB
InventorDavid Grennhag
Estimating the term…
The present disclosure relates to a tool holding arrangement (1, 1′, 1″) comprising a rotatable shaft (2, 2′, 2″) which is at least connectable to a tool driving power source (3) and comprises a first shaft thread (4, 4′). The tool holding arrangement (1, 1′, 1) comprises a thread insert (5, 5′) that comprises a first insert thread (6, 6′), adapted to engage the first shaft thread (4, 4′) so as to form a first thread arrangement (4, 6; 4′, 6′). The thread insert (5, 5′) comprises a second insert thread (7) that is adapted to engage a tool thread (8) of a tool holding device (9) that is arranged to be 2 screwed onto the second insert thread (7) so as to form a second thread arrangement (7, 8), the first thread arrangement (4, 6; 4′, 6′) having a higher pitch than the second thread arrangement (7, 8).
A tool holding arrangement comprising a rotatable shaft which is at least connectable to a drill unit and comprises a first shaft thread wherein the tool holding arrangement comprises a thread insert that comprises a first insert thread, adapted to engage the first shaft thread so as to form a first thread arrangement, and a second insert thread adapted to engage a tool thread of a tool holding device that is arranged to be screwed onto the second insert thread so as to form a second thread arrangement, the first thread arrangement having a higher pitch than the second thread arrangement.
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A thread insert that comprises a first insert thread and a second insert thread, wherein the first insert thread is adapted to engage the first shaft thread of a rotatable shaft so as to form a first thread arrangement, and in that the second insert thread is adapted to engage a tool inner thread of a tool holding device that is arranged to be screwed onto the second insert thread so as to form a second thread arrangement, the first insert thread having a higher pitch than the second insert thread.
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A rotatable shaft that is at least connectable to a drill unit, wherein the rotatable shaft comprises a first shaft thread adapted to engage a first insert thread of a thread insert that in turn is attachable to a tool holding device.
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Dependencies are inferred from the claim text.