Tool holding arrangement, thread insert, rotatable shaft and drill unit
US12377472B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 3, 2020 |
| Grant date | Aug 5, 2025 |
| Priority date | — |
| Expiry date | Nov 23, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23B2260/056
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
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).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.