Drill unit with a motor unit and a gear unit
US11858052B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2022 |
| Grant date | Jan 2, 2024 |
| Priority date | — |
| Expiry date | Feb 14, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23B2260/122
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The present disclosure relates to a drill tool (1), such as a core drill tool (1), comprising a motor unit (2) and a gear unit (3). The motor unit (2) comprises an electric motor (4) and a motor drive shaft (5) that extends along a first longitudinal axis (6) from the electric motor (4) and protrudes out of a motor unit housing (7) via a motor exit aperture (8) in a housing end part (9) and comprises a drive shaft gear (10). The drive shaft gear (10) is adapted to propel a drill shaft (14) that extends along a second longitudinal axis (15) and comprises a tool holder (16) that is adapted to hold a tool. The housing end part (9) comprises a wall part (17) arranged transversally to the longitudinal axes (6, 15) and is adapted to close the gear unit cavity (11) and to separate the electric motor (4) from the gear unit cavity (11).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.